{"id":300562,"date":"2023-12-28T21:27:52","date_gmt":"2023-12-28T14:27:52","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=300562"},"modified":"2023-12-28T21:27:52","modified_gmt":"2023-12-28T14:27:52","slug":"cach-tinh-chu-vi-hinh-vuong","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/cach-tinh-chu-vi-hinh-vuong\/","title":{"rendered":"C\u00e1ch t\u00ednh chu vi, \u0111\u01b0\u1eddng ch\u00e9o h\u00ecnh vu\u00f4ng ch\u00ednh x\u00e1c nh\u1ea5t"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">C\u00f4ng th\u1ee9c t\u00ednh chu vi v\u00e0 \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng kh\u00f4ng ch\u1ec9 l\u00e0 nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n m\u00e0 c\u00f2n l\u00e0 nh\u1eefng k\u1ef9 n\u0103ng quan tr\u1ecdng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c. Theo \u0111\u00f3, vi\u1ec7c hi\u1ec3u r\u00f5 c\u00f4ng th\u1ee9c n\u00e0y s\u1ebd gi\u00fap ng\u01b0\u1eddi d\u00f9ng s\u1edf h\u1eefu m\u1ed9t n\u1ec1n n\u1ec1n t\u1ea3ng ki\u1ebfn th\u1ee9c v\u1eefng ch\u1eafc. \u0110\u1ed3ng th\u1eddi gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng nhanh ch\u00f3ng trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ea7n thi\u1ebft. Song, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 <\/span><b>c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng<\/b><span style=\"font-weight: 400;\"> v\u00e0 \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p t\u1eeb <\/span><b>Ho\u00e0ng H\u00e0 Mobile<\/b><span style=\"font-weight: 400;\"> m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Chu vi c\u1ee7a h\u00ecnh vu\u00f4ng l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng, tr\u01b0\u1edbc h\u1ebft qu\u00fd b\u1ea1n \u0111\u1ecdc c\u1ea7n ph\u1ea3i hi\u1ec3u r\u00f5 v\u1ec1 \u0111\u1ecbnh ngh\u0129a c\u0169ng nh\u01b0 b\u1ea3n ch\u1ea5t c\u1ee7a h\u00ecnh h\u1ecdc n\u00e0y. C\u1ee5 th\u1ec3, d\u01b0\u1edbi \u0111\u00e2y ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p m\u1ed9t s\u1ed1 th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ti\u1ebfp c\u1eadn v\u1edbi c\u00e1ch t\u00ednh n\u00e0y h\u01a1n.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">\u0110\u1ecbnh ngh\u0129a c\u01a1 b\u1ea3n v\u1ec1 chu vi h\u00ecnh vu\u00f4ng<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">V\u1ec1 c\u01a1 b\u1ea3n, chu vi c\u1ee7a h\u00ecnh vu\u00f4ng l\u00e0 t\u1ed5ng chi\u1ec1u d\u00e0i c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c c\u1ea1nh c\u1ee7a h\u00ecnh. Song, \u0111\u1ed1i v\u1edbi h\u00ecnh vu\u00f4ng th\u00ec m\u1ed7i c\u1ea1nh c\u1ee7a ch\u00fang th\u01b0\u1eddng b\u1eb1ng nhau n\u00ean c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng s\u1ebd b\u1eb1ng chi\u1ec1u d\u00e0i c\u1ee7a m\u1ed9t c\u1ea1nh nh\u00e2n v\u1edbi 4. Trong \u0111\u00f3, \u0111\u01a1n v\u1ecb \u0111o c\u1ee7a chu vi th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n theo \u0111\u01a1n v\u1ecb chi\u1ec1u d\u00e0i c\u1ea1nh, ch\u1eb3ng h\u1ea1n nh\u01b0 centimet ho\u1eb7c m\u00e9t.\u00a0<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-1.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-1-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-1-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-300564 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-1.jpg\" alt=\"cach-tinh-chu-vi-hinh-vuong-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">Th\u1ef1c t\u1ebf, chu vi l\u00e0 m\u1ed9t \u0111\u1eb7c t\u00ednh quan tr\u1ecdng c\u1ee7a h\u00ecnh vu\u00f4ng v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c t\u1eeb h\u00ecnh h\u1ecdc \u0111\u1ebfn x\u00e2y d\u1ef1ng v\u00e0 thi\u1ebft k\u1ebf. Ch\u00fang kh\u00f4ng ch\u1ec9 gi\u00fap cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c th\u1eddi gian x\u00e1c \u0111\u1ecbnh chi\u1ec1u d\u00e0i c\u1ee7a v\u1eadt th\u1ec3 c\u1ea7n t\u00ednh m\u00e0 c\u00f2n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c th\u00fac \u0111\u1ea9y nhanh ti\u1ebfn \u0111\u1ed9 l\u00e0m vi\u1ec7c. Tuy nhi\u00ean, \u0111\u1ec3 t\u1eadn d\u1ee5ng hi\u1ec7u qu\u1ea3 t\u00ednh ch\u1ea5t c\u1ee7a chu vi h\u00ecnh vu\u00f4ng th\u00ec b\u1ea1n n\u00ean t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00f4ng th\u1ee9c c\u1ee7a ch\u00fang trong n\u1ed9i dung sau.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">C\u00f4ng th\u1ee9c v\u00e0 c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng c\u01a1 b\u1ea3n d\u00e0nh cho b\u1ea1n<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00f4ng th\u1ee9c v\u00e0 c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng th\u1ef1c t\u1ebf \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ea5t nhi\u1ec1u trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau. Trong \u0111\u00f3, c\u00e1c to\u00e1n ch\u1eafc c\u00f3 l\u1ebd l\u00e0 n\u01a1i c\u00f4ng th\u1ee9c n\u00e0y th\u01b0\u1eddng xuy\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. B\u1edfi, ch\u00fang l\u00e0 nh\u1eefng k\u1ef9 n\u0103ng v\u00e0 ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n m\u00e0 b\u1eaft bu\u1ed9c b\u1ea1n h\u1ecdc sinh n\u00e0o c\u0169ng ph\u1ea3i n\u1eafm \u0111\u01b0\u1ee3c \u0111\u1ec3 gi\u1ea3i ra c\u00e1c c\u00e2u h\u1ecfi kh\u00f3 h\u01a1n.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-2.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-2-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-2-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-300565 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-2.jpg\" alt=\"cach-tinh-chu-vi-hinh-vuong-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00f4ng th\u1ee9c t\u00ednh chi ti\u1ebft chu vi h\u00ecnh vu\u00f4ng m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o:<\/span><\/p>\n<p style=\"text-align: center;\"><b>Chu vi = Chi\u1ec1u d\u00e0i c\u1ea1nh x S\u1ed1 c\u1ea1nh\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Theo \u0111\u00f3:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Chu vi l\u00e0 m\u1ed9t t\u00ean g\u1ecdi \u0111\u1eb7c bi\u1ec7t n\u00f3i v\u1ec1 t\u1ed5ng chi\u1ec1u d\u00e0i c\u1ee7a c\u00e1c c\u1ea1nh h\u00ecnh vu\u00f4ng.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Chi\u1ec1u d\u00e0i c\u1ea1nh l\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed7i c\u1ea1nh h\u00ecnh vu\u00f4ng, th\u01b0\u1eddng k\u00fd hi\u1ec7u l\u00e0 a.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 c\u1ea1nh l\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u00e1c c\u1ea1nh c\u1ee7a h\u00ecnh vu\u00f4ng v\u00e0 1 h\u00ecnh vu\u00f4ng s\u1ebd c\u00f3 4 c\u1ea1nh.<\/span><\/li>\n<\/ul>\n<p><b>V\u00ed d\u1ee5 minh h\u1ecda<\/b><span style=\"font-weight: 400;\">: Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t h\u00ecnh vu\u00f4ng v\u1edbi c\u1ea1nh c\u00f3 \u0111\u1ed9 d\u00e0i l\u00e0 a = 5 cm. \u0110\u1ec3 t\u00ednh chu vi c\u1ee7a h\u00ecnh vu\u00f4ng n\u00e0y, ch\u00fang ta \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c \u0111\u00e3 n\u00eau \u1edf tr\u00ean:<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">Chu vi = Chi\u1ec1u d\u00e0i c\u1ea1nh x S\u1ed1 c\u1ea1nh = 5 x 4 = 20 cm.<\/span><\/p>\n<p><b>Ch\u00fa th\u00edch<\/b><span style=\"font-weight: 400;\">: V\u00ec m\u1ed7i c\u1ea1nh \u0111\u1ec1u c\u00f3 \u0111\u1ed9 d\u00e0i b\u1eb1ng nhau v\u00e0 h\u00ecnh vu\u00f4ng c\u00f3 4 c\u1ea1nh, n\u00ean chu vi c\u1ee7a h\u00ecnh vu\u00f4ng n\u00e0y l\u00e0 20 cm. \u0110i\u1ec1u n\u00e0y l\u00e0 m\u1ed9t v\u00ed d\u1ee5 minh h\u1ecda v\u1ec1 c\u00e1ch t\u00ednh chu vi c\u1ee7a h\u00ecnh vu\u00f4ng d\u1ef1a tr\u00ean c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n. Theo \u0111\u00f3, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng c\u00f4ng th\u1ee9c v\u00e0 c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng trong v\u00ed d\u1ee5 n\u00e0y \u0111\u1ec1 t\u00ednh cho t\u1ea5t c\u1ea3 c\u00e1c h\u00ecnh h\u1ecdc c\u00f3 d\u1ea1ng h\u00ecnh vu\u00f4ng kh\u00e1c trong c\u00e1c b\u00e0i to\u00e1n kh\u00e1c.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Nh\u1eefng l\u01b0u \u00fd khi th\u1ef1c hi\u1ec7n c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Qu\u00e1 tr\u00ecnh tri\u1ec3n khai c\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh vu\u00f4ng t\u01b0\u1edfng ch\u1eebng s\u1ebd \u0111\u01a1n gi\u1ea3n nh\u01b0ng th\u1ef1c t\u1ebf chung l\u1ea1i r\u1ea5t kh\u00f3 tri\u1ec3n kh\u1ea3i v\u00e0 cho ra k\u1ebft qu\u1ea3 \u0111\u00fang n\u1ebfu nh\u01b0 b\u1ea1n x\u00e1c \u0111\u1ecbnh ho\u1eb7c t\u00ednh nh\u1ea7m s\u1ed1 li\u1ec7u. \u0110\u1ec3 h\u1ea1n ch\u1ebf c\u00e1c tr\u01b0\u1eddng h\u1ee3p tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc qua m\u1ed9t s\u1ed1 \u0111i\u1ec1u c\u1ea7n ch\u00fa \u00fd d\u01b0\u1edbi \u0111\u00e2y.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-3.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-3-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-3-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-300566 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-3.jpg\" alt=\"cach-tinh-chu-vi-hinh-vuong-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong c\u00e1c \u0111\u1ec1 thi c\u00f3 ch\u1ee9a nhi\u1ec1u h\u00ecnh vu\u00f4ng, b\u1ea1n c\u1ea7n x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c chi\u1ec1u d\u00e0i c\u1ee7a c\u1ea1nh h\u00ecnh vu\u00f4ng b\u1ea1n c\u1ea7n t\u00ednh. \u0110\u1ed3ng th\u1eddi, c\u1ea7n \u0111\u1ea3m b\u1ea3o r\u1eb1ng, b\u1ea1n \u0111\u00e3 \u0111o l\u01b0\u1eddng \u0111\u1ed9 d\u00e0i c\u1ee7a c\u1ea1nh m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 \u0111o l\u01b0\u1eddng ph\u00f9 h\u1ee3p nh\u01b0 th\u01b0\u1edbc \u0111o ho\u1eb7c r\u00e8.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n, b\u1ea1n c\u0169ng n\u00ean tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p l\u00e0m tr\u00f2n s\u1ed1 qu\u00e1 nhi\u1ec1u, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi \u0111o l\u01b0\u1eddng trong c\u00e1c \u0111\u01a1n v\u1ecb nh\u1ecf nh\u01b0 milimet. B\u1edfi, r\u1ea5t c\u00f3 th\u1ec3 s\u1ed1 li\u1ec7u n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 t\u00ednh c\u1ee7a c\u00e2u h\u1ecfi kh\u00e1c trong \u0111\u1ec1 b\u00e0i.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">N\u1ebfu c\u00f3 th\u1ec3, b\u1ea1n n\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 nh\u01b0 m\u00e1y t\u00ednh ho\u1eb7c \u1ee9ng d\u1ee5ng t\u00ednh to\u00e1n \u0111\u1ec3 gi\u1ea3m thi\u1ec3u sai s\u00f3t trong qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n. Th\u1eadm ch\u00ed, h\u00e3y so s\u00e1nh \u0111\u00e1p \u00e1n c\u1ee7a m\u00ecnh v\u1edbi s\u1ed1 li\u1ec7u \u0111\u00e3 \u0111o l\u01b0\u1eddng th\u1ef1c t\u1ebf \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00f4ng tr\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ngo\u00e0i ra, b\u1ea1n c\u0169ng h\u00e3y x\u00e1c \u0111\u1ecbnh r\u00f5 \u0111\u01a1n v\u1ecb \u0111o m\u00e0 b\u1ea1n \u0111ang s\u1eed d\u1ee5ng v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u1ea3 \u0111\u1ed9 d\u00e0i c\u1ee7a c\u1ea1nh v\u00e0 k\u1ebft qu\u1ea3 chu vi \u0111\u1ec1u \u0111\u01b0\u1ee3c di\u1ec5n \u0111\u1ea1t trong c\u00f9ng m\u1ed9t \u0111\u01a1n v\u1ecb. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p c\u1ee7a h\u1ecdc sinh trong c\u00e1c \u0111\u1ec1 b\u00e0i \u0111\u00e1nh \u0111\u1ed1. Do \u0111\u00f3, b\u1ea1n h\u00e3y ki\u1ec3m tra th\u1eadt k\u1ef9 l\u01b0\u1ee1ng tr\u01b0\u1edbc khi \u0111\u01b0a ra k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng nh\u00e9.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng c\u1ee7a c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng trong th\u1ef1c t\u1ebf<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 v\u00ed d\u1ee5 v\u1ec1 c\u00e1ch m\u00e0 ki\u1ebfn th\u1ee9c v\u1ec1 chu vi h\u00ecnh vu\u00f4ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng b\u1ea1n kh\u00f4ng th\u1ec3 b\u1ecf qua.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-4.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-4-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-4-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-300567 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-4.jpg\" alt=\"cach-tinh-chu-vi-hinh-vuong-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Chu vi c\u1ee7a h\u00ecnh vu\u00f4ng l\u00e0 m\u1ed9t ph\u1ea7n c\u01a1 b\u1ea3n trong gi\u00e1o tr\u00ecnh h\u00ecnh h\u1ecdc v\u00e0 to\u00e1n h\u1ecdc. N\u00f3 gi\u00fap h\u1ecdc sinh hi\u1ec3u v\u1ec1 m\u1ed1i li\u00ean quan gi\u1eefa c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n nh\u01b0 chu vi, di\u1ec7n t\u00edch v\u00e0 \u0111\u1ed9 d\u00e0i c\u1ea1nh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong ng\u00e0nh x\u00e2y d\u1ef1ng, chu vi c\u1ee7a h\u00ecnh vu\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n l\u01b0\u1ee3ng v\u1eadt li\u1ec7u c\u1ea7n thi\u1ebft cho vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c b\u1ee9c t\u01b0\u1eddng vu\u00f4ng g\u00f3c, s\u00e0n nh\u00e0 ho\u1eb7c c\u00e1c c\u1ea5u tr\u00fac kh\u00e1c.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Chu vi c\u1ee7a h\u00ecnh vu\u00f4ng c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n di\u1ec7n t\u00edch khi k\u1ebft h\u1ee3p v\u1edbi chi\u1ec1u r\u1ed9ng ho\u1eb7c chi\u1ec1u d\u00e0i. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 h\u1eefu \u00edch trong qu\u00e1 tr\u00ecnh qu\u1ea3n l\u00fd v\u00e0 \u0111o l\u01b0\u1eddng khu \u0111\u1ea5t, nh\u1ea5t l\u00e0 khi c\u1ea7n x\u00e1c \u0111\u1ecbnh di\u1ec7n t\u00edch \u0111\u1ea5t trong d\u1ef1 \u00e1n b\u1ea5t \u0111\u1ed9ng s\u1ea3n.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf \u0111\u1ed3 h\u1ecda, ki\u1ebfn th\u1ee9c v\u1ec1 c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u00e0 t\u1ef7 l\u1ec7 c\u1ee7a v\u1eadt th\u1ec3. \u0110\u00e2y l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng \u0111\u1ec3 t\u1ea1o c\u00e1c b\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt v\u00e0 \u0111\u1ed3 h\u1ecda ch\u1ea5t l\u01b0\u1ee3ng cao hi\u1ec7n nay.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">\u0110\u01b0\u1eddng ch\u00e9o h\u00ecnh vu\u00f4ng l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">T\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng, \u0111\u1ec3 tri\u1ec3n khai vi\u1ec7c t\u00ednh to\u00e1n \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh h\u1ecdc n\u00e0y th\u00ec b\u1ea1n c\u1ea7n n\u0103m b\u1eaft \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1ecbnh ngh\u0129a v\u00e0 l\u00fd thuy\u1ebft c\u01a1 b\u1ea3n c\u1ee7a ch\u00fang qua c\u00e1c g\u1ee3i \u00fd sau.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">\u0110\u1ecbnh ngh\u0129a c\u01a1 b\u1ea3n v\u1ec1 \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u01b0\u1eddng ch\u00e9o (d) c\u1ee7a m\u1ed9t h\u00ecnh vu\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng n\u1ed1i hai \u0111\u1ec9nh \u0111\u1ed1i di\u1ec7n nhau c\u1ee7a h\u00ecnh vu\u00f4ng. Trong h\u00ecnh h\u1ecdc kh\u00f4ng gian, \u0111\u01b0\u1eddng ch\u00e9o chia h\u00ecnh vu\u00f4ng th\u00e0nh hai tam gi\u00e1c vu\u00f4ng \u0111\u1ec1u. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t g\u00f3c 45 \u0111\u1ed9 v\u1edbi m\u1ed7i c\u1ea1nh c\u1ee7a h\u00ecnh vu\u00f4ng. Do \u0111\u00f3, c\u00f3 th\u1ec3 n\u00f3i, \u0111\u01b0\u1eddng ch\u00e9o l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec3m \u0111\u1eb7c tr\u01b0ng ri\u00eang c\u1ee7a h\u00ecnh vu\u00f4ng m\u00e0 c\u00e1c h\u00ecnh h\u1ecdc kh\u00f4ng c\u00f3.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-5.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-5-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-5-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-300568 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-5.jpg\" alt=\"cach-tinh-chu-vi-hinh-vuong-5\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-5.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-5-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-5-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">Trong c\u00e1c \u0111\u1ec1 b\u00e0i to\u00e1n, \u0111\u1ed9 d\u00e0i \u0111\u01b0\u1eddng ch\u00e9o c\u0169ng l\u00e0 m\u1ed9t s\u1ed1 li\u1ec7u quan tr\u1ecdng c\u00f4ng th\u1ee9c v\u00e0 c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng. B\u1edfi l\u1ebd, b\u1ea1n s\u1ebd ph\u1ea3i d\u1ef1a v\u00e0o chi\u1ec1u d\u00e0i c\u1ee7a \u0111\u01b0\u1eddng ch\u00e9o \u0111\u1ec3 t\u00ednh ra \u0111\u01b0\u1ee3c chi\u1ec1u d\u00e0i c\u1ea1nh c\u1ee7a h\u00ecnh h\u1ecdc. Th\u1ebf n\u00ean, trong c\u00e1c b\u00e0i to\u00e1n ho\u1eb7c trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 \u0111o \u0111\u1ea1c, d\u00e2y d\u1ef1ng v\u00e0 thi\u1ebft k\u1ebf, c\u00e1ch t\u00ednh \u0111\u01b0\u1eddng ch\u00e8o c\u0169ng \u0111\u01b0\u1ee3c xem l\u00e0 y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n \u0111\u1ec3 gi\u00fap ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n t\u1ed1i h\u00f3a th\u1eddi gian th\u1ef1c hi\u1ec7n.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">C\u00f4ng th\u1ee9c v\u00e0 c\u00e1ch t\u00ednh \u0111\u01b0\u1eddng ch\u00e9o h\u00ecnh vu\u00f4ng d\u00e0nh cho b\u1ea1n<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 t\u00ednh \u0111\u1ed9 d\u00e0i c\u1ee7a \u0111\u01b0\u1eddng ch\u00e9o (d) trong m\u1ed9t h\u00ecnh vu\u00f4ng, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c Pythagoras. B\u1edfi l\u1ebd, \u0111\u00e2y l\u00e0 \u0111\u01b0\u1eddng ch\u00e9o t\u1ea1o ra hai tam gi\u00e1c vu\u00f4ng \u0111\u1ec1u. C\u1ee5 th\u1ec3, c\u00f4ng th\u1ee9c t\u00ednh n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y chi ti\u1ebft nh\u01b0 sau:<\/span><\/p>\n<p style=\"text-align: center;\"><b>d\u00b2 = <\/b><b>a<\/b><b>\u00b2 <\/b><b>+ <\/b><b>b\u00b2<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Trong \u0111\u00f3:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">d l\u00e0 \u0111\u1ed9 d\u00e0i c\u1ee7a \u0111\u01b0\u1eddng ch\u00e9o.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">a v\u00e0 b l\u00e0 \u0111\u1ed9 d\u00e0i c\u1ee7a c\u00e1c c\u1ea1nh li\u1ec1n k\u1ec1 c\u1ee7a h\u00ecnh vu\u00f4ng. Th\u00f4ng th\u01b0\u1eddng, \u0111\u1ed9 d\u00e0i c\u1ee7a hai c\u1ea1nh n\u00e0y s\u1ebd b\u1eb1ng nhau.<\/span><\/li>\n<\/ul>\n<p><b>V\u00ed d\u1ee5 minh h\u1ecda<\/b><span style=\"font-weight: 400;\">: Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t h\u00ecnh vu\u00f4ng v\u1edbi c\u1ea1nh c\u00f3 \u0111\u1ed9 d\u00e0i l\u00e0 6 cm. H\u00e3y t\u00ednh \u0111\u01b0\u1eddng ch\u00e9o v\u00e0 chu vi c\u1ee7a h\u00ecnh vu\u00f4ng tr\u00ean.<\/span><\/p>\n<p><b>L\u1eddi gi\u1ea3i<\/b><span style=\"font-weight: 400;\">:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c1p d\u1ee5ng c\u00f4ng th\u1ee9c Pythagoras, ch\u00fang ta c\u00f3 th\u1ec3 t\u00ednh \u0111\u1ed9 d\u00e0i c\u1ee7a \u0111\u01b0\u1eddng ch\u00e9o nh\u01b0 sau:<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">d\u00b2 = <\/span><span style=\"font-weight: 400;\">a\u00b2 <\/span><span style=\"font-weight: 400;\">+ <\/span><span style=\"font-weight: 400;\">b\u00b2<\/span><span style=\"font-weight: 400;\">= <\/span><span style=\"font-weight: 400;\">6\u00b2<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">+ <\/span><span style=\"font-weight: 400;\">6<\/span><span style=\"font-weight: 400;\">\u00b2 <\/span><span style=\"font-weight: 400;\">= \u221a<\/span><span style=\"font-weight: 400;\">72<\/span><span style=\"font-weight: 400;\"> = 8,49 cm<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Theo \u0111\u00f3, c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo c\u00f4ng th\u1ee9c nh\u01b0 sau:<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">Chu vi = Chi\u1ec1u d\u00e0i c\u1ea1nh x S\u1ed1 c\u1ea1nh = 6 x 4 = 24 cm.<\/span><\/p>\n<p><b>L\u01b0u \u00fd<\/b><span style=\"font-weight: 400;\">: C\u00e1ch t\u00ednh \u0111\u01b0\u1eddng ch\u00e9o v\u00e0 chu vi h\u00ecnh vu\u00f4ng s\u1ebd \u0111\u1ec1u c\u00f3 nh\u1eefng \u0111i\u1ec1u l\u01b0u \u00fd t\u01b0\u01a1ng t\u1ef1 nhau. Do \u0111\u00f3, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 tham kh\u1ea3o n\u1ed9i dung t\u01b0\u01a1ng t\u1ef1 \u1edf ph\u1ea7n nh\u1eefng l\u01b0u \u00fd khi th\u1ef1c hi\u1ec7n c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng \u0111\u1ec3 qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n di\u1ec5n ra ch\u00ednh x\u00e1c v\u00e0 nhanh ch\u00f3ng h\u01a1n nh\u00e9.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng c\u1ee7a c\u00e1ch \u0111\u01b0\u1eddng ch\u00e9o h\u00ecnh vu\u00f4ng trong th\u1ef1c t\u1ebf<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1ch t\u00ednh \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c l\u0129nh v\u1ef1c li\u00ean quan \u0111\u1ebfn \u0111o \u0111\u1ea1c, x\u00e2y d\u1ef1ng v\u00e0 thi\u1ebft k\u1ebf. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 v\u00ed d\u1ee5 v\u1ec1 c\u00e1ch \u00e1p d\u1ee5ng ki\u1ebfn th\u1ee9c v\u1ec1 \u0111\u01b0\u1eddng ch\u00e9o h\u00ecnh vu\u00f4ng trong th\u1ef1c t\u1ebf m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-7.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-7-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-7-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-300570 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-7.jpg\" alt=\"cach-tinh-chu-vi-hinh-vuong-7\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-7.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-7-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/cach-tinh-chu-vi-hinh-vuong-7-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong ng\u00e0nh x\u00e2y d\u1ef1ng, c\u00e1ch t\u00ednh \u0111\u01b0\u1eddng ch\u00e9o h\u00ecnh vu\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh chi\u1ec1u d\u00e0i c\u1ee7a \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a c\u00e1c khu v\u1ef1c vu\u00f4ng g\u00f3c. Ch\u1eb3ng h\u1ea1n nh\u01b0 khi x\u00e2y d\u1ef1ng m\u1ed9t t\u01b0\u1eddng ch\u00e9o gi\u1eefa hai t\u01b0\u1eddng vu\u00f4ng g\u00f3c. Th\u1eadm ch\u00ed, ch\u00fang c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u trong c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 h\u1eefu \u00edch trong vi\u1ec7c \u0111o \u0111\u1ea1c khu \u0111\u1ea5t, k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c ph\u00f2ng ho\u1eb7c di\u1ec7n t\u00edch b\u1ea5t k\u1ef3 h\u00ecnh vu\u00f4ng n\u00e0o.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf n\u1ed9i th\u1ea5t, \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng ch\u00e9o trong b\u1ed1 c\u1ee5c c\u1ee7a c\u00e1c v\u1eadt ph\u1ea9m n\u1ed9i th\u1ea5t. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u0103ng c\u01b0\u1eddng t\u00ednh c\u00e2n \u0111\u1ed1i v\u00e0 th\u1ea9m m\u1ef9 trong qu\u00e1 tr\u00ecnh gia c\u00f4ng.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ngo\u00e0i ra, trong c\u00e1c b\u00e0i to\u00e1n h\u00ecnh h\u1ecdc v\u00e0 h\u00ecnh h\u1ecdc kh\u00f4ng gian th\u00ec c\u00f4ng th\u1ee9c t\u00ednh \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ea5t linh ho\u1ea1t. Ch\u00fang h\u1ea7u nh\u01b0 gi\u1ea3i quy\u1ebft to\u00e0n b\u1ed9 v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 v\u1ecb tr\u00ed c\u1ee7a c\u00e1c h\u00ecnh vu\u00f4ng v\u00e0 gi\u00fap b\u1ea1n gi\u1ea3i nhanh \u0111\u01b0\u1ee3c c\u00e1c b\u00e0i to\u00e1n h\u00f3c b\u00faa.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">L\u1eddi k\u1ebft<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u00f3 l\u00e0 <\/span><b>c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng<\/b><span style=\"font-weight: 400;\"> v\u00e0 \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a ch\u00fang ch\u00ednh x\u00e1c nh\u1ea5t m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o v\u00e0 \u00e1p d\u1ee5ng ngay tr\u00ean b\u00e0i t\u1eadp c\u1ee7a m\u00ecnh. Th\u00f4ng qua b\u00e0i vi\u1ebft ng\u00e0y h\u00f4m nay, <\/span><b>Ho\u00e0ng H\u00e0 Mobile<\/b><span style=\"font-weight: 400;\"> hy vong qu\u00fd b\u1ea1n \u0111\u1ecdc s\u1ebd n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c c\u00e1ch t\u00ednh c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u b\u00ean tr\u00ean. \u0110\u1ed3ng th\u1eddi c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed c\u0169ng nh\u01b0 th\u00e0nh t\u00edch c\u1ee7a m\u00ecnh trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">XEM TH\u00caM<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/duong-cao-tam-giac-can\/\"><span style=\"font-weight: 400;\">C\u00e1ch t\u00ednh \u0111\u01b0\u1eddng cao tam gi\u00e1c c\u00e2n, vu\u00f4ng, \u0111\u1ec1u k\u00e8m b\u00e0i t\u1eadp<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cong-thuc-tinh-dien-tich-hinh-thang\/\"><span style=\"font-weight: 400;\">C\u00e1ch t\u00ednh di\u1ec7n t\u00edch h\u00ecnh thang &amp; h\u00ecnh thang vu\u00f4ng, b\u00e0i t\u1eadp th\u1ef1c h\u00e0nh minh h\u1ecda chi ti\u1ebft<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cach-tinh-phan-tram\/\"><span style=\"font-weight: 400;\">C\u00e1ch t\u00ednh ph\u1ea7n tr\u0103m (%) d\u1ec5 d\u00e0ng, ch\u00ednh x\u00e1c nh\u1ea5t<\/span><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng th\u1ee9c t\u00ednh chu vi v\u00e0 \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng kh\u00f4ng ch\u1ec9 l\u00e0 nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n m\u00e0 c\u00f2n l\u00e0 nh\u1eefng k\u1ef9 n\u0103ng quan tr\u1ecdng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c. Theo \u0111\u00f3, vi\u1ec7c hi\u1ec3u r\u00f5 c\u00f4ng th\u1ee9c n\u00e0y s\u1ebd gi\u00fap ng\u01b0\u1eddi d\u00f9ng s\u1edf h\u1eefu m\u1ed9t n\u1ec1n n\u1ec1n t\u1ea3ng ki\u1ebfn [&hellip;]<\/p>\n","protected":false},"author":101,"featured_media":300575,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3910,30453],"tags":[],"class_list":["post-300562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kham-pha","category-kien-thuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch t\u00ednh chu vi, \u0111\u01b0\u1eddng ch\u00e9o h\u00ecnh vu\u00f4ng ch\u00ednh x\u00e1c nh\u1ea5t<\/title>\n<meta name=\"description\" content=\"D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng v\u00e0 \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p t\u1eeb Ho\u00e0ng H\u00e0 Mobile. 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