{"id":567267,"date":"2026-07-22T09:19:06","date_gmt":"2026-07-22T02:19:06","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=567267"},"modified":"2026-07-22T16:28:03","modified_gmt":"2026-07-22T09:28:03","slug":"tam-giac-dong-dang-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/tam-giac-dong-dang-la-gi\/","title":{"rendered":"Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec? C\u00e1c tr\u01b0\u1eddng h\u1ee3p v\u00e0 t\u00ednh ch\u1ea5t"},"content":{"rendered":"

Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec?<\/strong> Hai tam gi\u00e1c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ed3ng d\u1ea1ng khi ch\u00fang c\u00f3 c\u00e1c g\u00f3c t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng nhau v\u00e0 c\u00e1c c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng t\u1ec9 l\u1ec7 v\u1edbi nhau. <\/span>Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng<\/b> l\u00e0 ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m c\u1ee7a H\u00ecnh h\u1ecdc l\u1edbp 8, \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ee9ng minh v\u00e0 t\u00ednh to\u00e1n \u0111\u1ed9 d\u00e0i, \u0111o gi\u00e1n ti\u1ebfp chi\u1ec1u cao. B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec, ba tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng, t\u00ednh ch\u1ea5t v\u1ec1 t\u1ec9 s\u1ed1, tr\u01b0\u1eddng h\u1ee3p tam gi\u00e1c vu\u00f4ng v\u00e0 b\u00e0i t\u1eadp c\u00f3 l\u1eddi gi\u1ea3i chi ti\u1ebft.<\/span><\/p>\n

Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec?<\/b><\/h2>\n

Tam gi\u00e1c ABC \u0111\u1ed3ng d\u1ea1ng v\u1edbi tam gi\u00e1c A’B’C’ (k\u00fd hi\u1ec7u \u25b3ABC \u223d \u25b3A’B’C’) n\u1ebfu ba g\u00f3c t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng nhau v\u00e0 ba c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng t\u1ec9 l\u1ec7: AB\/A’B’ = BC\/B’C’ = CA\/C’A’. T\u1ec9 s\u1ed1 b\u1eb1ng nhau n\u00e0y g\u1ecdi l\u00e0 t\u1ec9 s\u1ed1 \u0111\u1ed3ng d\u1ea1ng k. Hai tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng c\u00f3 c\u00f9ng h\u00ecnh d\u1ea1ng nh\u01b0ng c\u00f3 th\u1ec3 kh\u00e1c k\u00edch th\u01b0\u1edbc.<\/span><\/p>\n

\"tam-giac-dong-dang-1\"<\/p>\n

Ba tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng c\u1ee7a hai tam gi\u00e1c<\/b><\/h2>\n

Ba tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng c\u1ee7a hai tam gi\u00e1c l\u00e0 n\u1ed9i dung quan tr\u1ecdng trong h\u00ecnh h\u1ecdc. Ph\u1ea7n n\u00e0y gi\u00fap ng\u01b0\u1eddi h\u1ecdc t\u00ecm hi\u1ec3u v\u1ec1 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c tam gi\u00e1c c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng. Qua \u0111\u00f3, h\u1ed7 tr\u1ee3 vi\u1ec7c nh\u1eadn bi\u1ebft, ph\u00e2n t\u00edch v\u00e0 v\u1eadn d\u1ee5ng ki\u1ebfn th\u1ee9c v\u00e0o c\u00e1c b\u00e0i to\u00e1n h\u00ecnh h\u1ecdc.<\/span><\/p>\n\n\n\n\n\n\n
Tr\u01b0\u1eddng h\u1ee3p<\/b><\/td>\n\u0110i\u1ec1u ki\u1ec7n<\/b><\/td>\n<\/tr>\n
C\u1ea1nh \u2013 c\u1ea1nh \u2013 c\u1ea1nh (c.c.c)<\/span><\/td>\nBa c\u1ea1nh c\u1ee7a tam gi\u00e1c n\u00e0y t\u1ec9 l\u1ec7 v\u1edbi ba c\u1ea1nh c\u1ee7a tam gi\u00e1c kia<\/span><\/td>\n<\/tr>\n
C\u1ea1nh \u2013 g\u00f3c \u2013 c\u1ea1nh (c.g.c)<\/span><\/td>\nHai c\u1ea1nh t\u1ec9 l\u1ec7 v\u00e0 g\u00f3c xen gi\u1eefa hai c\u1ea1nh \u0111\u00f3 b\u1eb1ng nhau<\/span><\/td>\n<\/tr>\n
G\u00f3c \u2013 g\u00f3c (g.g)<\/span><\/td>\nHai g\u00f3c c\u1ee7a tam gi\u00e1c n\u00e0y l\u1ea7n l\u01b0\u1ee3t b\u1eb1ng hai g\u00f3c c\u1ee7a tam gi\u00e1c kia<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u00ednh ch\u1ea5t c\u1ee7a tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec?<\/b><\/h2>\n

T\u00ednh ch\u1ea5t c\u1ee7a tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng gi\u00fap m\u1edf r\u1ed9ng kh\u1ea3 n\u0103ng nh\u1eadn bi\u1ebft c\u00e1c m\u1ed1i quan h\u1ec7 trong h\u00ecnh h\u1ecdc. N\u1ed9i dung n\u00e0y t\u1eadp trung v\u00e0o nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m chung gi\u1eefa c\u00e1c tam gi\u00e1c c\u00f3 s\u1ef1 t\u01b0\u01a1ng \u1ee9ng. Qua \u0111\u00f3, ng\u01b0\u1eddi h\u1ecdc c\u00f3 th\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 s\u1ef1 li\u00ean h\u1ec7 gi\u1eefa c\u00e1c y\u1ebfu t\u1ed1 h\u00ecnh h\u1ecdc.<\/span><\/p>\n

    \n
  • T\u1ec9 s\u1ed1 hai c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng k.<\/span><\/li>\n
  • T\u1ec9 s\u1ed1 hai \u0111\u01b0\u1eddng cao, hai \u0111\u01b0\u1eddng trung tuy\u1ebfn, hai \u0111\u01b0\u1eddng ph\u00e2n gi\u00e1c t\u01b0\u01a1ng \u1ee9ng c\u0169ng b\u1eb1ng k.<\/span><\/li>\n
  • T\u1ec9 s\u1ed1 hai chu vi b\u1eb1ng k.<\/span><\/li>\n
  • T\u1ec9 s\u1ed1 hai di\u1ec7n t\u00edch b\u1eb1ng k\u00b2 (b\u00ecnh ph\u01b0\u01a1ng t\u1ec9 s\u1ed1 \u0111\u1ed3ng d\u1ea1ng).<\/span><\/li>\n<\/ul>\n

    \"tam-giac-dong-dang-2\"<\/p>\n

    C\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng c\u1ee7a tam gi\u00e1c vu\u00f4ng<\/b><\/h2>\n

    Hai tam gi\u00e1c vu\u00f4ng \u0111\u01b0\u1ee3c xem l\u00e0 \u0111\u1ed3ng d\u1ea1ng khi th\u1ecfa m\u00e3n m\u1ed9t trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh. Nh\u1eefng ti\u00eau ch\u00ed n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh nhanh m\u1ed1i quan h\u1ec7 v\u1ec1 g\u00f3c v\u00e0 c\u1ea1nh gi\u1eefa hai tam gi\u00e1c.<\/span><\/p>\n

    C\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng c\u1ee7a tam gi\u00e1c vu\u00f4ng g\u1ed3m:<\/span><\/p>\n

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    • C\u00f3 m\u1ed9t g\u00f3c nh\u1ecdn b\u1eb1ng nhau: Hai tam gi\u00e1c vu\u00f4ng \u0111\u1ed3ng d\u1ea1ng n\u1ebfu c\u00f3 m\u1ed9t c\u1eb7p g\u00f3c nh\u1ecdn t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng nhau.<\/span><\/li>\n
    • Hai c\u1ea1nh g\u00f3c vu\u00f4ng t\u1ec9 l\u1ec7: Hai tam gi\u00e1c vu\u00f4ng \u0111\u1ed3ng d\u1ea1ng khi hai c\u1ea1nh g\u00f3c vu\u00f4ng t\u01b0\u01a1ng \u1ee9ng c\u00f3 t\u1ec9 s\u1ed1 b\u1eb1ng nhau.<\/span><\/li>\n
    • C\u1ea1nh huy\u1ec1n v\u00e0 c\u1ea1nh g\u00f3c vu\u00f4ng t\u1ec9 l\u1ec7: Hai tam gi\u00e1c vu\u00f4ng \u0111\u1ed3ng d\u1ea1ng n\u1ebfu c\u1ea1nh huy\u1ec1n v\u00e0 m\u1ed9t c\u1ea1nh g\u00f3c vu\u00f4ng t\u01b0\u01a1ng \u1ee9ng t\u1ec9 l\u1ec7.<\/span><\/li>\n<\/ul>\n

      Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p tr\u00ean gi\u00fap nh\u1eadn bi\u1ebft tam gi\u00e1c vu\u00f4ng \u0111\u1ed3ng d\u1ea1ng nhanh ch\u00f3ng. \u0110\u1ed3ng th\u1eddi, ch\u00fang h\u1ed7 tr\u1ee3 hi\u1ec7u qu\u1ea3 trong vi\u1ec7c t\u00ednh to\u00e1n v\u00e0 ch\u1ee9ng minh h\u00ecnh h\u1ecdc.<\/span><\/p>\n

      Ph\u00e2n bi\u1ec7t tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng v\u00e0 tam gi\u00e1c b\u1eb1ng nhau<\/b><\/h2>\n

      Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec?<\/strong> Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng v\u00e0 tam gi\u00e1c b\u1eb1ng nhau \u0111\u1ec1u th\u1ec3 hi\u1ec7n m\u1ed1i quan h\u1ec7 gi\u1eefa hai tam gi\u00e1c. Tuy nhi\u00ean, hai kh\u00e1i ni\u1ec7m n\u00e0y c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u1ec9 l\u1ec7 c\u1ea1nh v\u00e0 k\u00edch th\u01b0\u1edbc.<\/span><\/p>\n

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      • Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng: Hai tam gi\u00e1c c\u00f3 c\u00e1c g\u00f3c t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng nhau v\u00e0 c\u00e1c c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng t\u1ec9 l\u1ec7. T\u1ec9 s\u1ed1 \u0111\u1ed3ng d\u1ea1ng c\u00f3 th\u1ec3 kh\u00e1c 1, n\u00ean k\u00edch th\u01b0\u1edbc hai tam gi\u00e1c c\u00f3 th\u1ec3 kh\u00f4ng gi\u1ed1ng nhau.<\/span><\/li>\n
      • Tam gi\u00e1c b\u1eb1ng nhau: L\u00e0 tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t c\u1ee7a tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng khi t\u1ec9 s\u1ed1 \u0111\u1ed3ng d\u1ea1ng k = 1. Khi \u0111\u00f3, c\u00e1c c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng nhau v\u00e0 hai tam gi\u00e1c c\u00f3 c\u00f9ng h\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc.<\/span><\/li>\n<\/ul>\n

        V\u00ec v\u1eady, hai tam gi\u00e1c b\u1eb1ng nhau lu\u00f4n \u0111\u1ed3ng d\u1ea1ng. Ng\u01b0\u1ee3c l\u1ea1i, hai tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng ch\u01b0a ch\u1eafc b\u1eb1ng nhau. Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng gi\u1eef nguy\u00ean h\u00ecnh d\u1ea1ng, c\u00f2n tam gi\u00e1c b\u1eb1ng nhau gi\u1eef nguy\u00ean c\u1ea3 h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc.<\/span><\/p>\n

        \"tam-giac-dong-dang-3\"<\/p>\n

        B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng c\u00f3 l\u1eddi gi\u1ea3i<\/b><\/h2>\n

        B\u00e0i 1: Hai tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng c\u00f3 t\u1ec9 s\u1ed1 k = 2. Tam gi\u00e1c nh\u1ecf c\u00f3 di\u1ec7n t\u00edch 10 cm\u00b2, t\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c l\u1edbn. L\u1eddi gi\u1ea3i: t\u1ec9 s\u1ed1 di\u1ec7n t\u00edch = k\u00b2 = 4, n\u00ean tam gi\u00e1c l\u1edbn c\u00f3 di\u1ec7n t\u00edch 10 \u00d7 4 = 40 cm\u00b2.<\/span><\/p>\n

        B\u00e0i 2: Tam gi\u00e1c ABC \u0111\u1ed3ng d\u1ea1ng tam gi\u00e1c DEF v\u1edbi AB = 4, DE = 8. T\u00ednh t\u1ec9 s\u1ed1 \u0111\u1ed3ng d\u1ea1ng. L\u1eddi gi\u1ea3i: k = AB\/DE = 4\/8 = 1\/2.<\/span><\/p>\n

        B\u00e0i 3: Hai tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng c\u00f3 t\u1ec9 s\u1ed1 chu vi l\u00e0 3. T\u1ec9 s\u1ed1 di\u1ec7n t\u00edch c\u1ee7a ch\u00fang l\u00e0 bao nhi\u00eau? L\u1eddi gi\u1ea3i: t\u1ec9 s\u1ed1 di\u1ec7n t\u00edch = k\u00b2 = 3\u00b2 = 9.<\/span><\/p>\n

        B\u00e0i 4 (tr\u1eafc nghi\u1ec7m): N\u1ebfu hai tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng v\u1edbi t\u1ec9 s\u1ed1 k = 3 th\u00ec t\u1ec9 s\u1ed1 di\u1ec7n t\u00edch l\u00e0 bao nhi\u00eau? A. 3 B. 6 C. 9 D. 12. \u0110\u00e1p \u00e1n: C.<\/span><\/p>\n

        \u1ee8ng d\u1ee5ng c\u1ee7a tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec?<\/b><\/h2>\n

        M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng g\u1ed3m:<\/span><\/p>\n

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        • \u0110o chi\u1ec1u cao gi\u00e1n ti\u1ebfp: C\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh chi\u1ec1u cao c\u1ee7a c\u00e2y, t\u00f2a nh\u00e0 b\u1eb1ng c\u00e1ch so s\u00e1nh b\u00f3ng n\u1eafng v\u1edbi m\u1ed9t v\u1eadt c\u00f3 chi\u1ec1u cao \u0111\u00e3 bi\u1ebft.<\/span><\/li>\n
        • \u0110o \u0111\u1ea1c \u0111\u1ecba h\u00ecnh: Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng h\u1ed7 tr\u1ee3 t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch v\u00e0 k\u00edch th\u01b0\u1edbc trong kh\u1ea3o s\u00e1t th\u1ef1c t\u1ebf.<\/span><\/li>\n
        • Thi\u1ebft k\u1ebf b\u1ea3n \u0111\u1ed3 t\u1ec9 l\u1ec7: Gi\u00fap bi\u1ec3u di\u1ec5n c\u00e1c khu v\u1ef1c l\u1edbn tr\u00ean b\u1ea3n \u0111\u1ed3 v\u1edbi k\u00edch th\u01b0\u1edbc thu nh\u1ecf ch\u00ednh x\u00e1c.<\/span><\/li>\n<\/ul>\n

          Nh\u1edd c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y, tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 h\u1eefu \u00edch trong h\u1ecdc t\u1eadp, k\u1ef9 thu\u1eadt v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c.<\/span><\/p>\n

          \"tam-giac-dong-dang-4\"<\/p>\n

          C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng<\/b><\/h2>\n

          Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec?<\/b><\/h3>\n

          L\u00e0 hai tam gi\u00e1c c\u00f3 c\u00e1c g\u00f3c t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng nhau v\u00e0 c\u00e1c c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng t\u1ec9 l\u1ec7 v\u1edbi nhau.<\/span><\/p>\n

          C\u00f3 m\u1ea5y tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng c\u1ee7a tam gi\u00e1c?<\/b><\/h3>\n

          C\u00f3 ba tr\u01b0\u1eddng h\u1ee3p: c\u1ea1nh \u2013 c\u1ea1nh \u2013 c\u1ea1nh, c\u1ea1nh \u2013 g\u00f3c \u2013 c\u1ea1nh, g\u00f3c \u2013 g\u00f3c.<\/span><\/p>\n

          T\u1ec9 s\u1ed1 di\u1ec7n t\u00edch hai tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng b\u1eb1ng bao nhi\u00eau?<\/b><\/h3>\n

          B\u1eb1ng b\u00ecnh ph\u01b0\u01a1ng t\u1ec9 s\u1ed1 \u0111\u1ed3ng d\u1ea1ng, t\u1ee9c b\u1eb1ng k\u00b2.<\/span><\/p>\n

          Tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng n\u00e0o hay d\u00f9ng nh\u1ea5t?<\/b><\/h3>\n

          Tr\u01b0\u1eddng h\u1ee3p g\u00f3c \u2013 g\u00f3c (g.g) v\u00ec ch\u1ec9 c\u1ea7n ch\u1ee9ng minh hai c\u1eb7p g\u00f3c b\u1eb1ng nhau.<\/span><\/p>\n

          Tam gi\u00e1c b\u1eb1ng nhau c\u00f3 \u0111\u1ed3ng d\u1ea1ng kh\u00f4ng?<\/b><\/h3>\n

          C\u00f3, tam gi\u00e1c b\u1eb1ng nhau l\u00e0 tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed3ng d\u1ea1ng \u0111\u1eb7c bi\u1ec7t v\u1edbi t\u1ec9 s\u1ed1 k = 1.<\/span><\/p>\n

          K\u1ebft lu\u1eadn<\/b><\/h2>\n

          Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng l\u00e0 g\u00ec? <\/strong>T\u00f3m l\u1ea1i, hai<\/span> tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng<\/b> khi c\u00f3 c\u00e1c g\u00f3c t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng nhau v\u00e0 c\u00e1c c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng t\u1ec9 l\u1ec7, v\u1edbi ba tr\u01b0\u1eddng h\u1ee3p c.c.c, c.g.c v\u00e0 g.g. Ghi nh\u1edb t\u1ec9 s\u1ed1 di\u1ec7n t\u00edch b\u1eb1ng k\u00b2 s\u1ebd gi\u00fap b\u1ea1n gi\u1ea3i nhanh nhi\u1ec1u b\u00e0i to\u00e1n. \u0110\u1ec3 h\u1ecdc th\u00eam, m\u1eddi b\u1ea1n tham kh\u1ea3o c\u00e1c b\u00e0i<\/span> c\u00e1ch t\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c vu\u00f4ng<\/span><\/a>,<\/span> c\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c<\/span><\/a> v\u00e0<\/span> c\u00e1ch t\u00ednh di\u1ec7n t\u00edch tam gi\u00e1c \u0111\u1ec1u<\/span><\/a> tr\u00ean chuy\u00ean m\u1ee5c tin t\u1ee9c c\u1ee7a Ho\u00e0ng H\u00e0 Mobile.\u00a0<\/span><\/p>\n

          Xem th\u00eam:<\/b><\/p>\n

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          • \n

            N\u1eafm V\u1eefng C\u00f4ng Th\u1ee9c Delta ; Delta Ph\u1ea9y: Ch\u00eca Kh\u00f3a Gi\u1ea3i Ph\u01b0\u01a1ng Tr\u00ecnh B\u1eadc Hai<\/a><\/p>\n<\/li>\n

          • \n

            Ph\u01b0\u01a1ng tr\u00ecnh ti\u1ebfp tuy\u1ebfn c\u1ee7a \u0111\u1ed3 th\u1ecb h\u00e0m s\u1ed1<\/a><\/p>\n<\/li>\n

          • \n

            \u0110\u1ecbnh l\u00fd Talet: \u0111\u1ecbnh l\u00fd \u0111\u1ea3o, h\u1ec7 qu\u1ea3 v\u00e0 c\u00e1ch ch\u1ee9ng minh tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng<\/a><\/p>\n<\/li>\n<\/ul>\n