{"id":531386,"date":"2026-03-19T10:56:48","date_gmt":"2026-03-19T03:56:48","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=531386"},"modified":"2026-03-19T10:56:48","modified_gmt":"2026-03-19T03:56:48","slug":"square-la-gi-tu-dinh-nghia-co-ban-den-ung-dung-da-dang-trong-doi-song","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/square-la-gi-tu-dinh-nghia-co-ban-den-ung-dung-da-dang-trong-doi-song\/","title":{"rendered":"Square l\u00e0 g\u00ec? T\u1eeb \u0110\u1ecbnh Ngh\u0129a C\u01a1 B\u1ea3n \u0110\u1ebfn \u1ee8ng D\u1ee5ng \u0110a D\u1ea1ng Trong \u0110\u1eddi S\u1ed1ng"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Trong ti\u1ebfng Anh, \u201c<\/span><b>square<\/b><span style=\"font-weight: 400;\">\u201d l\u00e0 m\u1ed9t t\u1eeb c\u1ef1c k\u1ef3 ph\u1ed5 bi\u1ebfn v\u1edbi nhi\u1ec1u l\u1edbp ngh\u0129a kh\u00e1c nhau, xu\u1ea5t hi\u1ec7n t\u1eeb h\u1ed9i tho\u1ea1i th\u01b0\u1eddng ng\u00e0y cho \u0111\u1ebfn khoa h\u1ecdc, to\u00e1n h\u1ecdc, k\u1ef9 thu\u1eadt hay c\u00e1c \u0111\u1ecba danh n\u1ed5i ti\u1ebfng to\u00e0n c\u1ea7u. Vi\u1ec7c hi\u1ec3u \u0111\u00fang v\u00e0 \u0111\u1ee7 v\u1ec1 \u201csquare\u201d kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n t\u1ef1 tin giao ti\u1ebfp, \u0111\u1ecdc hi\u1ec3u t\u00e0i li\u1ec7u, m\u00e0 c\u00f2n m\u1edf r\u1ed9ng v\u1ed1n t\u1eeb, tr\u00e1nh c\u00e1c nh\u1ea7m l\u1eabn tai h\u1ea1i khi g\u1eb7p ph\u1ea3i trong nh\u1eefng ng\u1eef c\u1ea3nh \u0111\u1eb7c bi\u1ec7t.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>T\u1ed5ng quan v\u1ec1 &#8216;square&#8217;: \u0110\u1ecbnh ngh\u0129a, c\u00e1ch \u0111\u1ecdc v\u00e0 c\u00e1c ngh\u0129a ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u201cSquare\u201d l\u00e0 t\u1eeb ti\u1ebfng Anh c\u00f3 ngh\u0129a g\u1ed1c l\u00e0 h\u00ecnh vu\u00f4ng, nh\u01b0ng c\u00f2n mang nhi\u1ec1u ngh\u0129a kh\u00e1c nh\u01b0 qu\u1ea3ng tr\u01b0\u1eddng, s\u1ef1 c\u00f4ng b\u1eb1ng, ng\u01b0\u1eddi c\u1ed5 h\u1ee7\u2026 Tu\u1ef3 t\u1eebng ng\u1eef c\u1ea3nh, \u201csquare\u201d s\u1ebd mang m\u1ed9t l\u1edbp ngh\u0129a ri\u00eang bi\u1ec7t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u1ed5ng h\u1ee3p c\u00e1c ngh\u0129a ph\u1ed5 bi\u1ebfn v\u00e0 h\u01b0\u1edbng d\u1eabn c\u00e1ch \u0111\u1ecdc, s\u1eed d\u1ee5ng t\u1eeb n\u00e0y.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Square l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a c\u01a1 b\u1ea3n trong ti\u1ebfng Vi\u1ec7t v\u00e0 ti\u1ebfng Anh<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u201cSquare\u201d trong ti\u1ebfng Anh d\u1ecbch ra ti\u1ebfng Vi\u1ec7t c\u00f3 th\u1ec3 l\u00e0:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><b>H\u00ecnh vu\u00f4ng<\/b><span style=\"font-weight: 400;\"> (danh t\u1eeb): H\u00ecnh h\u1ecdc ph\u1eb3ng c\u00f3 b\u1ed1n c\u1ea1nh b\u1eb1ng nhau, b\u1ed1n g\u00f3c vu\u00f4ng.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Qu\u1ea3ng tr\u01b0\u1eddng<\/b><span style=\"font-weight: 400;\"> (danh t\u1eeb): Khu v\u1ef1c r\u1ed9ng, th\u01b0\u1eddng \u1edf gi\u1eefa th\u00e0nh ph\u1ed1 (v\u00ed d\u1ee5: Times Square).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>C\u00f4ng b\u1eb1ng\/Ngay th\u1eb3ng\/C\u00e2n \u0111\u1ed1i<\/b><span style=\"font-weight: 400;\"> (t\u00ednh t\u1eeb): Ch\u1ec9 s\u1ef1 c\u00f4ng b\u1eb1ng, minh b\u1ea1ch, ho\u1eb7c h\u00ecnh d\u00e1ng vu\u00f4ng v\u1eafn.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Ng\u01b0\u1eddi c\u1ed5 h\u1ee7\/l\u1ed7i th\u1eddi<\/b><span style=\"font-weight: 400;\"> (danh t\u1eeb, ti\u1ebfng l\u00f3ng): Ch\u1ec9 ng\u01b0\u1eddi b\u1ea3o th\u1ee7, kh\u00f4ng c\u1eadp nh\u1eadt xu h\u01b0\u1edbng m\u1edbi.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>L\u00e0m cho vu\u00f4ng v\u1ee9c\/h\u1ee3p l\u00fd<\/b><span style=\"font-weight: 400;\"> (\u0111\u1ed9ng t\u1eeb): \u0110i\u1ec1u ch\u1ec9nh cho ph\u00f9 h\u1ee3p, c\u00e2n \u0111\u1ed1i.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5:<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; This picture is a square. (B\u1ee9c tranh n\u00e0y l\u00e0 h\u00ecnh vu\u00f4ng.)<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; Let&#8217;s meet at the town square. (H\u1eb9n g\u1eb7p \u1edf qu\u1ea3ng tr\u01b0\u1eddng trung t\u00e2m.)<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; He always plays fair and square. (Anh \u1ea5y lu\u00f4n ch\u01a1i c\u00f4ng b\u1eb1ng v\u00e0 minh b\u1ea1ch.)<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; Don\u2019t be such a square! (\u0110\u1eebng c\u00f3 c\u1ed5 h\u1ee7 nh\u01b0 v\u1eady!)<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-1.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-1-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-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-531854 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-1.jpg\" alt=\"square-la-gi-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h3 style=\"text-align: justify;\"><b>C\u00e1ch \u0111\u1ecdc Square trong ti\u1ebfng Anh chu\u1ea9n x\u00e1c<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">T\u1eeb \u201csquare\u201d \u0111\u1ecdc l\u00e0 <\/span><b>\/skwe\u0259(r)\/<\/b><span style=\"font-weight: 400;\"> theo phi\u00ean \u00e2m qu\u1ed1c t\u1ebf IPA.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><b>H\u01b0\u1edbng d\u1eabn ph\u00e1t \u00e2m:<\/b><b><br \/>\n<\/b><span style=\"font-weight: 400;\">&#8211; \u00c2m \u0111\u1ea7u \u201csk\u201d ph\u00e1t gi\u1ed1ng nh\u01b0 \u201cs\u1edd-c\u1edd\u201d li\u1ec1n nhau.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">&#8211; \u201cwe\u0259\u201d l\u00e0 \u00e2m \u0111\u00f4i, g\u1ea7n nh\u01b0 \u201cque\u201d trong \u201cquen\u201d, nh\u01b0ng k\u00e9o d\u00e0i h\u01a1n.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">&#8211; Anh-Anh (BrE): \/skwe\u0259\/; Anh-M\u1ef9 (AmE): \/skwer\/ (\u00e2m \u201cr\u201d cu\u1ed1i r\u00f5 h\u01a1n).<\/span><\/p>\n<p style=\"text-align: justify;\"><b>Luy\u1ec7n \u0111\u1ecdc:<\/b><span style=\"font-weight: 400;\"> sk &#8211; wair (\u201csk-que\u1edd\u201d ho\u1eb7c \u201csk-que(r)\u201d)<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>C\u00e1c bi\u1ebfn th\u1ec3 ngh\u0129a ph\u1ed5 bi\u1ebfn c\u1ee7a Square l\u00e0 g\u00ec?<\/b><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><b>Square nh\u01b0 Danh t\u1eeb:<\/b>\n<ul>\n<li style=\"font-weight: 400;\"><b>H\u00ecnh vu\u00f4ng<\/b><span style=\"font-weight: 400;\">: A square has four equal sides and four right angles.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Qu\u1ea3ng tr\u01b0\u1eddng<\/b><span style=\"font-weight: 400;\">: Times Square is a famous place in New York.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Kh\u1ed1i vu\u00f4ng<\/b><span style=\"font-weight: 400;\">: A block or object in the shape of a square.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>D\u1ee5ng c\u1ee5 \u00ea-ke (set square)<\/b><span style=\"font-weight: 400;\">: C\u00f4ng c\u1ee5 v\u1ebd g\u00f3c vu\u00f4ng trong h\u00ecnh h\u1ecdc.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\"><b>Square nh\u01b0 T\u00ednh t\u1eeb:<\/b>\n<ul>\n<li style=\"font-weight: 400;\"><b>Vu\u00f4ng v\u1eafn<\/b><span style=\"font-weight: 400;\">: a square table (b\u00e0n vu\u00f4ng).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>C\u00f4ng b\u1eb1ng\/Ngay th\u1eb3ng<\/b><span style=\"font-weight: 400;\">: a square deal (m\u1ed9t th\u1ecfa thu\u1eadn c\u00f4ng b\u1eb1ng).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>C\u1ed5 h\u1ee7\/L\u1ed7i th\u1eddi<\/b><span style=\"font-weight: 400;\"> (slang): \u201cHe\u2019s such a square.\u201d<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\"><b>Square nh\u01b0 \u0110\u1ed9ng t\u1eeb:<\/b>\n<ul>\n<li style=\"font-weight: 400;\"><b>L\u00e0m cho vu\u00f4ng v\u1ee9c<\/b><span style=\"font-weight: 400;\">: to square the edges.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Thanh to\u00e1n n\u1ee3<\/b><span style=\"font-weight: 400;\">: to square a debt (tr\u1ea3 h\u1ebft n\u1ee3).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>\u0110i\u1ec1u ch\u1ec9nh\/Ph\u00f9 h\u1ee3p<\/b><span style=\"font-weight: 400;\">: to square with (ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u g\u00ec).<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf:<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; The carpenter squared the table legs.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; We need to square our accounts.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; His story doesn\u2019t square with the facts.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>&#8216;Square&#8217; trong to\u00e1n h\u1ecdc v\u00e0 \u0111o l\u01b0\u1eddng: T\u1eeb c\u0103n b\u1eadc hai \u0111\u1ebfn di\u1ec7n t\u00edch<\/b><\/h2>\n<p style=\"text-align: justify;\"><b>Square trong to\u00e1n h\u1ecdc<\/b><span style=\"font-weight: 400;\"> l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng, ch\u1ec9 ph\u00e9p n\u00e2ng l\u00ean l\u0169y th\u1eeba b\u1eadc hai v\u00e0 c\u00e1c kh\u00e1i ni\u1ec7m li\u00ean quan nh\u01b0 c\u0103n b\u1eadc hai, s\u1ed1 ch\u00ednh ph\u01b0\u01a1ng, di\u1ec7n t\u00edch h\u00ecnh vu\u00f4ng v\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb \u0111o di\u1ec7n t\u00edch.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Square root l\u00e0 g\u00ec? Kh\u00e1i ni\u1ec7m c\u0103n b\u1eadc hai v\u00e0 khai c\u0103n<\/b><\/h3>\n<p style=\"text-align: justify;\"><b>C\u0103n b\u1eadc hai<\/b><span style=\"font-weight: 400;\"> (square root) l\u00e0 s\u1ed1 m\u00e0 khi nh\u00e2n v\u1edbi ch\u00ednh n\u00f3 s\u1ebd ra m\u1ed9t s\u1ed1 x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc. K\u00fd hi\u1ec7u l\u00e0 \u221a. V\u00ed d\u1ee5, \u221a16 = 4 v\u00ec 4 x 4 = 16.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><b>Khai c\u0103n<\/b><span style=\"font-weight: 400;\"> l\u00e0 ph\u00e9p to\u00e1n t\u00ecm c\u0103n b\u1eadc hai (ho\u1eb7c c\u0103n b\u1eadc n) c\u1ee7a m\u1ed9t s\u1ed1.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><b>C\u0103n b\u1eadc 2 c\u1ee7a s\u1ed1 \u00e2m<\/b><span style=\"font-weight: 400;\"> kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb th\u1ef1c, m\u00e0 \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong t\u1eadp s\u1ed1 ph\u1ee9c (s\u1ed1 \u1ea3o). V\u00ed d\u1ee5, \u221a-1 = i (i l\u00e0 \u0111\u01a1n v\u1ecb \u1ea3o trong to\u00e1n h\u1ecdc).<\/span><\/p>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5:<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; \u221a9 = 3<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; sqrt(16) = 4<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; sqrt(-4) = 2i<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-2.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-2-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-2-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-531855 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-2.jpg\" alt=\"square-la-gi-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h3 style=\"text-align: justify;\"><b>Square number, Perfect Square v\u00e0 c\u00e1c kh\u00e1i ni\u1ec7m li\u00ean quan<\/b><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><b>Square number: <\/b><span style=\"font-weight: 400;\">S\u1ed1 ch\u00ednh ph\u01b0\u01a1ng l\u00e0 s\u1ed1 b\u1eb1ng b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean. V\u00ed d\u1ee5: 1, 4, 9, 16, 25, \u2026<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Perfect square l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">C\u0169ng l\u00e0 s\u1ed1 ch\u00ednh ph\u01b0\u01a1ng \u2013 m\u1ed9t s\u1ed1 c\u00f3 c\u0103n b\u1eadc hai l\u00e0 s\u1ed1 nguy\u00ean. V\u00ed d\u1ee5: 36 l\u00e0 perfect square v\u00ec \u221a36 = 6.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Completing the square: <\/b><span style=\"font-weight: 400;\">L\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i ph\u01b0\u01a1ng tr\u00ecnh b\u1eadc hai v\u1ec1 d\u1ea1ng b\u00ecnh ph\u01b0\u01a1ng ho\u00e0n ch\u1ec9nh \u0111\u1ec3 d\u1ec5 gi\u1ea3i h\u01a1n.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><b>V\u00ed d\u1ee5:<\/b><span style=\"font-weight: 400;\"> x\u00b2 + 6x + 9 = (x + 3)\u00b2<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Magic square: <\/b><span style=\"font-weight: 400;\">H\u00ecnh vu\u00f4ng ma thu\u1eadt \u2013 l\u00e0 ma tr\u1eadn vu\u00f4ng m\u00e0 t\u1ed5ng c\u00e1c s\u1ed1 \u1edf m\u1ed7i h\u00e0ng, c\u1ed9t, \u0111\u01b0\u1eddng ch\u00e9o \u0111\u1ec1u b\u1eb1ng nhau.<\/span><\/li>\n<\/ul>\n<h3 style=\"text-align: justify;\"><b>C\u00e1c \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng di\u1ec7n t\u00edch v\u1edbi &#8216;Square&#8217;<\/b><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><b>Square foot (ft\u00b2), Square feet<\/b><span style=\"font-weight: 400;\">: \u0110\u01a1n v\u1ecb \u0111o di\u1ec7n t\u00edch ph\u1ed5 bi\u1ebfn t\u1ea1i M\u1ef9, b\u1eb1ng di\u1ec7n t\u00edch h\u00ecnh vu\u00f4ng c\u1ea1nh 1 foot (~0,093 m\u00b2).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square meter (m\u00b2):<\/b><span style=\"font-weight: 400;\"> \u0110\u01a1n v\u1ecb \u0111o qu\u1ed1c t\u1ebf, b\u1eb1ng di\u1ec7n t\u00edch h\u00ecnh vu\u00f4ng c\u1ea1nh 1 m\u00e9t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square footage l\u00e0 g\u00ec?<\/b><span style=\"font-weight: 400;\"> T\u1ed5ng di\u1ec7n t\u00edch t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb \u201csquare foot\u201d.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5:<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; The apartment has 80 square meters.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; The house has 2,000 square feet of living space.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; Please calculate the square footage of this room.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>C\u00e1c thu\u1eadt ng\u1eef v\u00e0 th\u00e0nh ng\u1eef ch\u1ee9a &#8220;Square&#8221;<\/b><\/h2>\n<p style=\"text-align: justify;\"><b>Square<\/b><span style=\"font-weight: 400;\"> xu\u1ea5t hi\u1ec7n trong nhi\u1ec1u c\u1ee5m t\u1eeb, th\u00e0nh ng\u1eef ti\u1ebfng Anh \u2013 m\u1ed7i c\u1ee5m mang m\u1ed9t \u00fd ngh\u0129a, s\u1eafc th\u00e1i ri\u00eang bi\u1ec7t. Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ebd gi\u00fap b\u1ea1n giao ti\u1ebfp t\u1ef1 nhi\u00ean, n\u1eafm b\u1eaft \u1ea9n \u00fd v\u00e0 s\u1eed d\u1ee5ng linh ho\u1ea1t trong c\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf.<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><b>Set square l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">L\u00e0 d\u1ee5ng c\u1ee5 \u00ea-ke trong h\u00ecnh h\u1ecdc (th\u01b0\u1eddng h\u00ecnh tam gi\u00e1c vu\u00f4ng), d\u00f9ng \u0111\u1ec3 v\u1ebd g\u00f3c vu\u00f4ng ho\u1eb7c c\u00e1c g\u00f3c \u0111\u1eb7c bi\u1ec7t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Fair and square ngh\u0129a l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">Th\u00e0nh ng\u1eef ch\u1ec9 s\u1ef1 c\u00f4ng b\u1eb1ng, minh b\u1ea1ch, kh\u00f4ng gian l\u1eadn. V\u00ed d\u1ee5: He won the game fair and square.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Back to square one l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">Th\u00e0nh ng\u1eef ngh\u0129a l\u00e0 \u201cquay l\u1ea1i v\u1ea1ch xu\u1ea5t ph\u00e1t\u201d, \u201cl\u00e0m l\u1ea1i t\u1eeb \u0111\u1ea7u\u201d. V\u00ed d\u1ee5: If this plan fails, we\u2019ll be back to square one.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square up l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">Ngh\u0129a l\u00e0 thanh to\u00e1n, tr\u1ea3 n\u1ee3, ho\u1eb7c chu\u1ea9n b\u1ecb \u0111\u1ed1i \u0111\u1ea7u. V\u00ed d\u1ee5: Let\u2019s square up the bill.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square the circle l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">Di\u1ec5n \u0111\u1ea1t vi\u1ec7c c\u1ed1 l\u00e0m \u0111i\u1ec1u kh\u00f4ng th\u1ec3, ho\u1eb7c r\u1ea5t kh\u00f3. V\u00ed d\u1ee5: He\u2019s trying to square the circle by pleasing everyone.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Pocket square: <\/b><span style=\"font-weight: 400;\">Kh\u0103n trang tr\u00ed nh\u1ecf g\u1ea5p \u0111\u1ec3 \u1edf t\u00fai \u00e1o vest nam.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Within the square<\/b><span style=\"font-weight: 400;\">: Trong ph\u1ea1m vi h\u1ee3p ph\u00e1p, h\u1ee3p l\u1ec7.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square meal<\/b><span style=\"font-weight: 400;\">: B\u1eefa \u0103n \u0111\u1ea7y \u0111\u1ee7 dinh d\u01b0\u1ee1ng.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">V\u00ed d\u1ee5: You need a square meal after hard work.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square one<\/b><span style=\"font-weight: 400;\">: V\u1ea1ch xu\u1ea5t ph\u00e1t, \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Make a square concession<\/b><span style=\"font-weight: 400;\">: Nh\u01b0\u1ee3ng b\u1ed9 m\u1ed9t c\u00e1ch c\u00f4ng b\u1eb1ng.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-3.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-3-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-3-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-531856 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-3.jpg\" alt=\"square-la-gi-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h2 style=\"text-align: justify;\"><b>&#8216;Square&#8217; trong \u0111\u1ecba danh, th\u01b0\u01a1ng hi\u1ec7u v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n<\/b><\/h2>\n<p style=\"text-align: justify;\"><b>Square<\/b><span style=\"font-weight: 400;\"> kh\u00f4ng ch\u1ec9 l\u00e0 t\u1eeb \u0111i\u1ec3n h\u00ecnh trong giao ti\u1ebfp m\u00e0 c\u00f2n xu\u1ea5t hi\u1ec7n \u1edf nhi\u1ec1u \u0111\u1ecba danh n\u1ed5i ti\u1ebfng, t\u00ean th\u01b0\u01a1ng hi\u1ec7u, c\u00f4ng ty, \u1ee9ng d\u1ee5ng v\u00e0 s\u1ea3n ph\u1ea9m tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><b>Times Square l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">Qu\u1ea3ng tr\u01b0\u1eddng Th\u1eddi \u0111\u1ea1i \u2013 trung t\u00e2m s\u1ea7m u\u1ea5t n\u1ed5i ti\u1ebfng b\u1eadc nh\u1ea5t New York, M\u1ef9. <\/span><span style=\"font-weight: 400;\">V\u00ed d\u1ee5: Times Square l\u00e0 n\u01a1i \u0111\u00f3n giao th\u1eeba ho\u00e0nh tr\u00e1ng nh\u1ea5t t\u1ea1i M\u1ef9.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Madison Square Garden<\/b><span style=\"font-weight: 400;\">: Nh\u00e0 thi \u0111\u1ea5u \u0111a n\u0103ng n\u1ed5i ti\u1ebfng \u1edf New York.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Trafalgar Square<\/b><span style=\"font-weight: 400;\">: Qu\u1ea3ng tr\u01b0\u1eddng l\u1ecbch s\u1eed l\u1edbn \u1edf London, Anh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Tiananmen Square<\/b><span style=\"font-weight: 400;\">: Qu\u1ea3ng tr\u01b0\u1eddng Thi\u00ean An M\u00f4n, B\u1eafc Kinh, Trung Qu\u1ed1c.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Union Square<\/b><span style=\"font-weight: 400;\">: Qu\u1ea3ng tr\u01b0\u1eddng t\u1ea1i San Francisco, M\u1ef9.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Saigon Square<\/b><span style=\"font-weight: 400;\">: Trung t\u00e2m th\u01b0\u01a1ng m\u1ea1i n\u1ed5i ti\u1ebfng \u1edf TP.HCM, Vi\u1ec7t Nam.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square Group<\/b><span style=\"font-weight: 400;\">: T\u1eadp \u0111o\u00e0n \u0111a ng\u00e0nh n\u1ed5i ti\u1ebfng t\u1ea1i Bangladesh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Binance Square<\/b><span style=\"font-weight: 400;\">: N\u1ec1n t\u1ea3ng c\u1ed9ng \u0111\u1ed3ng c\u1ee7a s\u00e0n giao d\u1ecbch Binance.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square Cash<\/b><span style=\"font-weight: 400;\"> (nay l\u00e0 Cash App): \u1ee8ng d\u1ee5ng chuy\u1ec3n ti\u1ec1n n\u1ed5i ti\u1ebfng c\u1ee7a Square, Inc.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Square tiles<\/b><span style=\"font-weight: 400;\">: G\u1ea1ch l\u00e1t h\u00ecnh vu\u00f4ng, th\u01b0\u1eddng d\u00f9ng trong x\u00e2y d\u1ef1ng v\u00e0 trang tr\u00ed n\u1ed9i th\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>The Square<\/b><span style=\"font-weight: 400;\">: C\u00f3 th\u1ec3 l\u00e0 t\u00ean phim, nh\u00e0 h\u00e0ng, ho\u1eb7c c\u00f4ng tr\u00ecnh n\u1ed5i b\u1eadt.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ngo\u00e0i ra, \u201csquare\u201d c\u00f2n l\u00e0 t\u00ean nhi\u1ec1u \u1ee9ng d\u1ee5ng ph\u1ea7n m\u1ec1m, gi\u1ea3i ph\u00e1p thanh to\u00e1n (Square, Inc.), ho\u1eb7c c\u00e1c s\u1ea3n ph\u1ea9m li\u00ean quan \u0111\u1ebfn c\u00f4ng ngh\u1ec7, t\u00e0i ch\u00ednh, gi\u00e1o d\u1ee5c.<\/span><\/p>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5:<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; \u201cLet\u2019s meet at Central Square.\u201d<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; \u201cSaigon Square l\u00e0 \u0111i\u1ec3m mua s\u1eafm l\u00fd t\u01b0\u1edfng cho du kh\u00e1ch.\u201d<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-4.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-4-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2026\/03\/square-la-gi-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-531857 webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-4.jpg\" alt=\"square-la-gi-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/03\/square-la-gi-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h2 style=\"text-align: justify;\"><b>Square trong th\u1ed1ng k\u00ea, ph\u00e2n t\u00edch v\u00e0 khoa h\u1ecdc d\u1eef li\u1ec7u<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Trong th\u1ed1ng k\u00ea, khoa h\u1ecdc d\u1eef li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt, \u201csquare\u201d xu\u1ea5t hi\u1ec7n trong nhi\u1ec1u thu\u1eadt ng\u1eef chuy\u00ean ng\u00e0nh li\u00ean quan \u0111\u1ebfn ph\u00e2n t\u00edch, \u01b0\u1edbc l\u01b0\u1ee3ng v\u00e0 \u0111o l\u01b0\u1eddng.<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><b>R square l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">K\u00fd hi\u1ec7u R\u00b2, l\u00e0 h\u1ec7 s\u1ed1 x\u00e1c \u0111\u1ecbnh trong h\u1ed3i quy tuy\u1ebfn t\u00ednh, ch\u1ec9 m\u1ee9c \u0111\u1ed9 ph\u00f9 h\u1ee3p c\u1ee7a m\u00f4 h\u00ecnh v\u1edbi d\u1eef li\u1ec7u th\u1ef1c t\u1ebf (gi\u00e1 tr\u1ecb t\u1eeb 0 \u0111\u1ebfn 1).<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Mean square: <\/b><span style=\"font-weight: 400;\">Gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a b\u00ecnh ph\u01b0\u01a1ng sai s\u1ed1 (mean square error \u2013 MSE) d\u00f9ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00f4 h\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Root mean: <\/b><span style=\"font-weight: 400;\">\u0110\u1ed9 l\u1ec7ch chu\u1ea9n c\u1ee7a gi\u00e1 tr\u1ecb b\u00ecnh ph\u01b0\u01a1ng trung b\u00ecnh, \u1ee9ng d\u1ee5ng trong th\u1ed1ng k\u00ea, v\u1eadt l\u00fd, k\u1ef9 thu\u1eadt.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Root mean square deviation l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">\u0110\u1ed9 l\u1ec7ch chu\u1ea9n c\u0103n b\u1eadc hai trung b\u00ecnh, \u0111o s\u1ef1 ph\u00e2n t\u00e1n d\u1eef li\u1ec7u so v\u1edbi gi\u00e1 tr\u1ecb trung b\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Least square method l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">Ph\u01b0\u01a1ng ph\u00e1p b\u00ecnh ph\u01b0\u01a1ng t\u1ed1i thi\u1ec3u \u2013 m\u1ed9t k\u1ef9 thu\u1eadt to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ecm \u0111\u01b0\u1eddng th\u1eb3ng ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi d\u1eef li\u1ec7u.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Partial least: <\/b><span style=\"font-weight: 400;\">Ph\u01b0\u01a1ng ph\u00e1p b\u00ecnh ph\u01b0\u01a1ng t\u1ed1i thi\u1ec3u t\u1eebng ph\u1ea7n, d\u00f9ng trong ph\u00e2n t\u00edch \u0111a bi\u1ebfn.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Least square support vector machine l\u00e0 g\u00ec? <\/b><span style=\"font-weight: 400;\">M\u1ed9t bi\u1ebfn th\u1ec3 c\u1ee7a SVM d\u00f9ng thu\u1eadt to\u00e1n b\u00ecnh ph\u01b0\u01a1ng t\u1ed1i thi\u1ec3u \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a b\u00e0i to\u00e1n ph\u00e2n lo\u1ea1i.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5:<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; \u201cThe R square value of this regression model is 0.85.\u201d<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">&#8211; \u201cWe use the least square method to fit the data.\u201d<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/b><\/h2>\n<p style=\"text-align: justify;\"><b>Square vi\u1ebft t\u1eaft l\u00e0 g\u00ec?<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u201cSq\u201d ho\u1eb7c \u201csq.\u201d th\u01b0\u1eddng l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a \u201csquare\u201d trong c\u00e1c t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt, \u0111\u01a1n v\u1ecb \u0111o di\u1ec7n t\u00edch nh\u01b0 sq.m (square meter), sq.ft (square foot).<\/span><\/p>\n<p style=\"text-align: justify;\"><b>Area of square l\u00e0 g\u00ec?<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Di\u1ec7n t\u00edch h\u00ecnh vu\u00f4ng (area of square) l\u00e0 c\u1ea1nh nh\u00e2n c\u1ea1nh (a \u00d7 a), k\u00fd hi\u1ec7u l\u00e0 S = a\u00b2, v\u1edbi \u201ca\u201d l\u00e0 \u0111\u1ed9 d\u00e0i m\u1ed9t c\u1ea1nh.<\/span><\/p>\n<p style=\"text-align: justify;\"><b>Square \u0111\u1ecdc l\u00e0 g\u00ec?<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Square \u0111\u1ecdc l\u00e0 \/skwe\u0259\/ (gi\u1ecdng Anh-Anh) ho\u1eb7c \/skwer\/ (gi\u1ecdng Anh-M\u1ef9). \u0110\u1ecdc g\u1ea7n gi\u1ed1ng \u201cs\u1edd-que\u1edd\u201d.<\/span><\/p>\n<p style=\"text-align: justify;\"><b>It&#8217;s a square ngh\u0129a l\u00e0 g\u00ec?<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">C\u00e2u n\u00e0y ngh\u0129a l\u00e0 \u201c\u0110\u00f3 l\u00e0 m\u1ed9t h\u00ecnh vu\u00f4ng\u201d ho\u1eb7c \u201c\u0110\u00f3 l\u00e0 qu\u1ea3ng tr\u01b0\u1eddng\u201d t\u00f9y ng\u1eef c\u1ea3nh. C\u0169ng c\u00f3 th\u1ec3 \u00e1m ch\u1ec9 \u0111i\u1ec1u g\u00ec \u0111\u00f3 c\u00f4ng b\u1eb1ng, minh b\u1ea1ch (slang).<\/span><\/p>\n<p style=\"text-align: justify;\"><b>Square ngh\u0129a ti\u1ebfng Vi\u1ec7t l\u00e0 g\u00ec?<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Square d\u1ecbch sang ti\u1ebfng Vi\u1ec7t l\u00e0 h\u00ecnh vu\u00f4ng, qu\u1ea3ng tr\u01b0\u1eddng, s\u1ef1 c\u00f4ng b\u1eb1ng, vu\u00f4ng v\u1eafn ho\u1eb7c ch\u1ec9 ng\u01b0\u1eddi c\u1ed5 h\u1ee7 t\u00f9y tr\u01b0\u1eddng h\u1ee3p.<\/span><\/p>\n<p style=\"text-align: justify;\"><b>Xem th\u00eam:<\/b><\/p>\n<ul>\n<li>\n<p class=\"elementor-heading-title elementor-size-default\"><span style=\"color: #339966;\"><strong><a style=\"color: #339966;\" href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cfs-la-gi\/\">CFS l\u00e0 g\u00ec? C\u00e1c \u0111\u1ecbnh ngh\u0129a v\u00e0 h\u01b0\u1edbng d\u1eabn \u0111\u0103ng k\u00fd CFS<\/a><\/strong><\/span><\/p>\n<\/li>\n<li>\n<p class=\"elementor-heading-title elementor-size-default\"><span style=\"color: #339966;\"><strong><a style=\"color: #339966;\" href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cif-la-gi\/\">CIF l\u00e0 g\u00ec? \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1c kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a CIF<\/a><\/strong><\/span><\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Trong ti\u1ebfng Anh, \u201csquare\u201d l\u00e0 m\u1ed9t t\u1eeb c\u1ef1c k\u1ef3 ph\u1ed5 bi\u1ebfn v\u1edbi nhi\u1ec1u l\u1edbp ngh\u0129a kh\u00e1c nhau, xu\u1ea5t hi\u1ec7n t\u1eeb h\u1ed9i tho\u1ea1i th\u01b0\u1eddng ng\u00e0y cho \u0111\u1ebfn khoa h\u1ecdc, to\u00e1n h\u1ecdc, k\u1ef9 thu\u1eadt hay c\u00e1c \u0111\u1ecba danh n\u1ed5i ti\u1ebfng to\u00e0n c\u1ea7u. Vi\u1ec7c hi\u1ec3u \u0111\u00fang v\u00e0 \u0111\u1ee7 v\u1ec1 \u201csquare\u201d kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n t\u1ef1 tin giao ti\u1ebfp, [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":531853,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29235,3910,30453],"tags":[],"class_list":["post-531386","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goc-to-mo","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>Square l\u00e0 g\u00ec? \u0110\u1ecbnh Ngh\u0129a C\u01a1 B\u1ea3n \u0110\u1ebfn \u1ee8ng D\u1ee5ng Trong \u0110\u1eddi S\u1ed1ng<\/title>\n<meta name=\"description\" content=\"Square l\u00e0 g\u00ec? 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