Soi c\u1ea7u l\u00f4 tam gi\u00e1c<\/em><\/strong> \u0111\u01b0\u1ee3c xem l\u00e0 ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u XSMB \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i l\u00f4 \u0111\u1ec1 \u00e1p d\u1ee5ng. Tuy nhi\u00ean, kh\u00f4ng c\u00f3 m\u1ed9t quy t\u1eafc c\u1ee5 th\u1ec3 n\u00e0o quy \u0111\u1ecbnh c\u00e1ch ch\u01a1i, do \u0111\u00f3 khi\u1ebfn ng\u01b0\u1eddi ch\u01a1i c\u1ea3m th\u1ea5y kh\u00e1 l\u00fang t\u00fang trong vi\u1ec7c v\u1eadn d\u1ee5ng. <\/em><\/p>\n \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o kh\u1ea3 n\u0103ng quan s\u00e1t v\u00e0 ghi nh\u1edb c\u1ee7a ng\u01b0\u1eddi ch\u01a1i. D\u1eef li\u1ec7u c\u1ea7n cho c\u00e1ch b\u1eaft l\u00f4 n\u00e0y l\u00e0 d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a ng\u00e0y h\u00f4m tr\u01b0\u1edbc, b\u1eb1ng c\u00e1ch quan s\u00e1t, ng\u01b0\u1eddi ch\u01a1i c\u1ea7n gh\u00e9p c\u00e1c con s\u1ed1 tr\u00ean b\u1ea3ng v\u1edbi nhau, t\u1ea1o th\u00e0nh m\u1ed9t chi\u1ebfc khung tam gi\u00e1c bao g\u1ed3m nh\u1eefng con l\u00f4 v\u1edbi t\u1ef7 l\u1ec7 n\u1ed5 cao nh\u1ea5t.<\/p>\n Th\u00f4ng qua kh\u1ea3o s\u00e1t tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n s\u1ed1, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1ecf ra kh\u00e1 hi\u1ec7u qu\u1ea3, mang l\u1ea1i nhi\u1ec1u chi\u1ebfn th\u1eafng cho ng\u01b0\u1eddi ch\u01a1i. V\u00ec v\u1eady, h\u00e3y c\u0169ng quan s\u00e1t v\u00e0 ghi nh\u1edb nh\u1eefng chia s\u1ebb d\u01b0\u1edbi \u0111\u00e2y<\/p>\n D\u1ef1a v\u00e0o x\u00e1c su\u1ea5t chi\u1ebfn th\u1eafng r\u1ea5t cao c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i \u0111\u00e3 truy\u1ec1n tai nhau v\u1ec1 c\u00e1ch \u00e1p d\u1ee5ng v\u00e0 t\u00ecm ra khung tam gi\u00e1c ma thu\u1eadt n\u00e0y.<\/p>\n D\u01b0\u1edbi \u0111\u00e2y l\u00e0 2 c\u00e1ch b\u1eaft khung tam gi\u00e1c m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i \u00e1p d\u1ee5ng nh\u1ea5t.<\/p>\n Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft khung tam gi\u00e1c d\u1ef1a v\u00e0o \u0111\u1ec1 \u0111\u01b0\u1ee3c xem l\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t. Th\u1ee9 t\u1ef1 c\u00e1c b\u01b0\u1edbc \u0111\u1ec3 t\u00ecm ra \u0111\u00e1p \u00e1n nh\u01b0 sau:<\/p>\n Khung tam gi\u00e1c s\u1ebd \u0111\u01b0\u1ee3c v\u1ebd v\u00e0 x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean 3 gi\u1ea3i: Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, Gi\u1ea3i nh\u1ea5t v\u00e0 Gi\u1ea3i 6.2 (con th\u1ee9 2 trong 3 con c\u1ee7a gi\u1ea3i 6).<\/p>\n Ta li\u1ec7t k\u00ea 3 gi\u1ea3i l\u1ea7n l\u01b0\u1ee3t nh\u01b0 sau:<\/p>\n Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t: 06561<\/p>\n Gi\u1ea3i nh\u1ea5t: 61403<\/p>\n Gi\u1ea3i 6.2: 187<\/p>\n X\u00e9t gi\u1ea3i nh\u1ea5t v\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t: 06561 61403<\/p>\n Nh\u1eefng con s\u1ed1 gi\u1ed1ng nhau bao g\u1ed3m: 0,6,1===> Lo\u1ea1i b\u1ecf<\/p>\n Sau \u0111\u00f3 c\u00f2n l\u1ea1i: 5,4,3<\/p>\n So sanh v\u1edbi gi\u1ea3i 6.2: 187<\/p>\n Lo\u1ea1i b\u1ecf nh\u1eefng con s\u1ed1 c\u00f9ng l\u1ebb: 1,3,5,7<\/p>\n C\u00f2n l\u1ea1i 2 s\u1ed1 l\u00e0 4 v\u00e0 8<\/p>\n – Gh\u00e9p 4 v\u00e0 8 v\u1edbi \u0111\u1ea7u \u0111u\u00f4i gi\u1ea3i 6.2 l\u00e0 1 v\u00e0 7: 41, 47, 81, 87<\/p>\n – Gh\u00e9p 4 v\u00e0 8 v\u1edbi t\u1ed5ng c\u1ee7a gi\u1ea3i 6.2 l\u00e0 6, ta \u0111\u01b0\u1ee3c: 46, 48<\/p>\n V\u1eady nh\u1eefng con b\u1ea1ch th\u1ee7 l\u00f4 c\u00f3 th\u1ec3 ch\u01a1i cho ng\u00e0y 28\/05\/2024 l\u00e0 41, 47, 81, 87 ho\u1eb7c 46, 48<\/p>\n <\/p>\n Ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 tam gi\u00e1c d\u1ef1a v\u00e0o v\u00f2ng t\u00e2m \u0111\u1ec1 c\u00f3 c\u00e1ch b\u1eaft c\u1ea7u nhanh v\u00e0 d\u1ec5 d\u00e0ng h\u01a1n. B\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh 3 \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c nh\u01b0 sau: 1 \u0111\u1ec9nh \u1edf con th\u1ee9 3 c\u1ee7a \u0111\u1ec1, 2 \u0111\u1ec9nh c\u00f2n l\u1ea1i \u1edf gi\u1ea3i 6.1 v\u00e0 6.3.<\/p>\n H\u00e0ng ch\u1ee5c c\u1ee7a con b\u1ea1ch th\u1ee7 l\u00f4 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 t\u00e2m \u0111\u1ec1, con s\u1ed1 th\u1ee9 1 c\u1ee7a gi\u1ea3i 6.1 v\u00e0 con s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i 6.2 s\u1ebd cho ra 2 con s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb. T\u1eeb \u0111\u00f3 ta x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 2 con b\u1ea1ch th\u1ee7 l\u00f4 \u0111\u1ec3 ch\u01a1i cho ng\u00e0y h\u00f4m sau.<\/p>\n V\u00ed d\u1ee5 \u0111\u1ec3 ng\u01b0\u1eddi ch\u01a1i d\u1ec5 h\u00ecnh dung:<\/strong><\/u><\/p>\n Xem b\u1ea3ng k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc ng\u00e0y 27\/05\/2024, ta th\u1ea5y:<\/p>\n Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 06561, t\u00e2m c\u1ee7a n\u00f3 l\u00e0 s\u1ed1 5 =====> Ta x\u00e1c nh\u1eadn \u0111\u01b0\u1ee3c h\u00e0ng ch\u1ee5c c\u1ee7a 2 con b\u1ea1ch th\u1ee7 l\u00f4 s\u1eafp x\u00e1c \u0111\u1ecbnh, ch\u00ednh l\u00e0 5<\/p>\n Gi\u1ea3i 6.1 l\u00e0 675 ===> Con s\u1ed1 th\u1ee9 1 l\u00e0 6 ====> Con b\u1ea1ch th\u1ee7 l\u00f4 \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c t\u00ecm ra l\u00e0 56<\/p>\n Gi\u1ea3i 6.2 l\u00e0 962 ===> Con s\u1ed1 cu\u1ed1i c\u00f9ng l\u00e0 2 ====> Con b\u1ea1ch th\u1ee7 l\u00f4 th\u1ee9 2 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 52<\/p>\n V\u1eady, d\u1ef1a v\u00e0o vi\u1ec7c soi c\u1ea7u khung tam gi\u00e1c, ng\u01b0\u1eddi ch\u01a1i s\u1ebd x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 2 con b\u1ea1ch th\u1ee7 l\u00f4 c\u00f3 th\u1ec3 xu\u1ed1ng ti\u1ec1n cho ngay 28\/05\/2024 l\u00e0: 56 v\u00e0 52.<\/p>\n \u1ede \u0111\u00e2y, ng\u01b0\u1eddi ch\u01a1i s\u1ebd gh\u00e9p s\u1ed1 ch\u00ednh gi\u1eefa c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u1edbi 2 ch\u1eef s\u1ed1 \u0111\u1ea7u v\u00e0 cu\u1ed1i trong d\u00e3y s\u1ed1 gi\u1ea3i 7 \u0111\u1ec3 t\u1ea1o n\u00ean m\u1ed9t c\u1eb7p song th\u1ee7 l\u00f4. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n, d\u1ec5 th\u1ef1c hi\u1ec7n v\u00e0 s\u1ebd mang l\u1ea1i hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t v\u1edbi khung 3-5 ng\u00e0y.<\/p>\n V\u1edbi c\u00e1ch n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ed1t c\u00e1c con l\u00f4 \u0111\u1ec3 ch\u01a1i theo d\u1ea1ng s\u1ed1 th\u1ee9 nh\u1ea5t l\u00e0 s\u1ed1 ch\u00ednh gi\u1eefa c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 s\u1ed1 th\u1ee9 2 l\u00e0 s\u1ed1 \u0111\u1ea7u ho\u1eb7c s\u1ed1 \u0111u\u00f4i c\u1ee7a gi\u1ea3i 7 ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i s\u1ed1 th\u1ee9 nh\u1ea5t l\u00e0 s\u1ed1 \u0111\u1ea7u ho\u1eb7c \u0111u\u00f4i c\u1ee7a gi\u1ea3i 7 v\u00e0 s\u1ed1 th\u1ee9 2 l\u00e0 s\u1ed1 ch\u00ednh gi\u1eefa c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t.<\/p>\n V\u00ed d\u1ee5: Ng\u00e0y 2\/4\/2024, k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc v\u1ec1 gi\u1ea3i l\u00f4 \u0111\u1eb7c bi\u1ec7t l\u00e0 23345, gi\u1ea3i 7 g\u1ed3m c\u00e1c c\u1eb7p l\u00f4: 12-35-46-78-20. S\u1ed1 gi\u1eefa c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 3, s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i 7 l\u00e0 1 v\u00e0 s\u1ed1 \u0111u\u00f4i c\u1ee7a gi\u1ea3i 7 l\u00e0 0. Gh\u00e9p l\u1ea1i, ta ch\u1ed1t c\u1ea7u l\u00f4 tam gi\u00e1c l\u00e0 13 – 03 \u0111\u1ec3 \u0111\u00e1nh cho k\u1ef3 quay s\u1ed1 ti\u1ebfp theo.<\/p>\n \u1ede \u0111\u00e2y, b\u1ea1n s\u1ebd gh\u00e9p s\u1ed1 ch\u00ednh gi\u1eefa c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u1edbi s\u1ed1 \u0111\u1ea7u v\u00e0 \u0111u\u00f4i c\u1ee7a gi\u1ea3i 6 \u0111\u1ec3 t\u1ea1o ra c\u1ea7u l\u00f4 c\u1ea7n ch\u1ecdn. X\u00e1c su\u1ea5t l\u00f4 v\u1ec1 khi \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng cao h\u01a1n c\u00e1ch soi c\u1ea7u l\u00f4 tam gi\u00e1c t\u1eeb gi\u1ea3i 7 v\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t.<\/p>\n C\u1ee5 th\u1ec3, c\u00e1ch gh\u00e9p s\u1ed1 nh\u01b0 sau: L\u1ea5y s\u1ed1 th\u1ee9 3 (ch\u00ednh gi\u1eefa) trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t gh\u00e9p v\u1edbi s\u1ed1 th\u1ee9 nh\u1ea5t c\u1ee7a gi\u1ea3i 6.1 (s\u1ed1 \u0111\u1ea7u) v\u00e0 s\u1ed1 th\u1ee9 3 c\u1ee7a gi\u1ea3i 6.3 (s\u1ed1 cu\u1ed1i). L\u01b0u \u00fd: Ng\u01b0\u1eddi ch\u01a1i c\u1ea7n n\u1eafm b\u1eaft th\u1eddi c\u01a1 \u0111\u1ec3 ch\u1ed1t c\u1ea7u, \u0111\u1ea3m b\u1ea3o t\u1ef7 l\u1ec7 th\u1eafng cao nh\u1ea5t.<\/p>\n V\u00ed d\u1ee5: K\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc ng\u00e0y 2\/4\/2024 ra gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 13678, gi\u1ea3i 6 ra 3 c\u1eb7p l\u00f4: 135 446 105. \u00c1p d\u1ee5ng c\u00e1ch l\u00e0m t\u1eeb gi\u1ea3i 6 v\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, ta c\u00f3 c\u1ea7u l\u00f4 61 – 56 => B\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e1nh c\u1eb7p song th\u1ee7 l\u00f4 cho h\u00f4m nay ho\u1eb7c nu\u00f4i c\u1eb7p l\u00f4 n\u00e0y trong 3 ng\u00e0y. K\u1ebft qu\u1ea3 l\u00e0 ng\u00e0y h\u00f4m sau, 3\/4\/2024, l\u00f4 v\u1ec1 61 v\u00e0 l\u00f4 l\u1ed9n 16 \u0111\u1ec1u v\u1ec1.<\/p>\n <\/p>\n \u1ede \u0111\u00e2y, ng\u01b0\u1eddi ch\u01a1i s\u1ebd b\u1eaft l\u00f4 theo gi\u1ea3i 5 v\u00e0 gi\u1ea3i 6 thu\u1ed9c k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 k\u1ef3 tr\u01b0\u1edbc. Ph\u01b0\u01a1ng ph\u00e1p m\u00e0 ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u d\u01b0\u1edbi \u0111\u00e2y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng khi \u0111\u00e1nh con l\u00f4 b\u1ea1ch th\u1ee7.<\/p>\n Ngo\u00e0i ra, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p c\u00e1ch soi c\u1ea7u l\u00f4 v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c \u0111\u1ec3 t\u0103ng hi\u1ec7u qu\u1ea3 nh\u01b0:<\/p>\n Soi c\u1ea7u l\u00f4 tam gi\u00e1c <\/strong>kh\u00f4ng h\u1ec1 d\u1ec5 nh\u01b0ng l\u1ea1i kh\u00f4ng qu\u00e1 kh\u00f3 n\u1ebfu c\u00e1c b\u1ea1n ch\u1ecbu kh\u00f3 \u0111\u1ecdc hi\u1ec3u v\u00e0 th\u1ef1c h\u00e0nh v\u00e0i l\u1ea7n. C\u00e1i kh\u00f3 \u1edf \u0111\u00e2y l\u00e0 b\u1ea1n c\u1ea7n linh ho\u1ea1t l\u1ed3ng gh\u00e9p nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u th\u00fa v\u1ecb kh\u00e1c c\u00f9ng v\u1edbi c\u00e1c c\u00e1ch ch\u01a1i. Ch\u00ednh v\u00ec v\u1eady, c\u00e1c b\u1ea1n c\u1ea7n ph\u1ea3i trau d\u1ed3i kinh nghi\u1ec7m ch\u01a1i l\u00f4 \u0111\u1ec1, ngo\u00e0i vi\u1ec7c t\u00ecm hi\u1ec3u ch\u1ec9 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p.<\/p>\n<\/div>\n1\/ Soi c\u1ea7u l\u00f4 tam gi\u00e1c l\u00e0 g\u00ec?<\/strong><\/h2>\n
2\/ C\u00e1ch soi c\u1ea7u l\u00f4 tam gi\u00e1c<\/strong><\/h2>\n
2.1 C\u00e1ch b\u1eaft khung tam gi\u00e1c d\u1ef1a v\u00e0o \u0111\u1ec1 <\/em><\/h3>\n
B\u01b0\u1edbc 1: Ph\u00e2n t\u00edch li\u1ec7t k\u00ea v\u00e0 v\u1ebd khung tam gi\u00e1c<\/em><\/h4>\n
B\u01b0\u1edbc 2: Nh\u1eefng con s\u1ed1 c\u00f3 s\u1ef1 li\u00ean quan \u0111\u1ec1u b\u1ecb lo\u1ea1i b\u1ecf nh\u01b0 gi\u1ed1ng nhau, l\u1eb7p l\u1ea1i, c\u00f9ng ch\u1eb5n ho\u1eb7c c\u00f9ng l\u1ebb…Nh\u1eefng con s\u1ed1 kh\u00e1c nhau s\u1ebd \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i d\u00f9ng \u0111\u1ec3 soi c\u1ea7u l\u00f4 tam gi\u00e1c.<\/em><\/h4>\n
B\u01b0\u1edbc 3: L\u1ea5y 2 con s\u1ed1 4 v\u00e0 8 v\u1eeba t\u00ecm \u0111\u01b0\u1ee3c, gh\u00e9p v\u1edbi 2 con s\u1ed1 \u0111\u1ea7u \u0111u\u00f4i c\u1ee7a gi\u1ea3i 6.2 ho\u1eb7c gh\u00e9p v\u1edbi t\u1ed5ng c\u1ee7a gi\u1ea3i 6.2.<\/em>
\nTa \u0111\u01b0\u1ee3c c\u00e1c con l\u00f4 x\u00e1c su\u1ea5t cao c\u00f3 th\u1ec3 xu\u1ed1ng ti\u1ec1n nh\u01b0 sau:<\/h4>\n2.2 Soi c\u1ea7u khung tam gi\u00e1c d\u1ef1a v\u00e0o v\u00f2ng t\u00e2m \u0111\u1ec1<\/em><\/h3>\n
Soi c\u1ea7u l\u00f4 tam gi\u00e1c<\/h6>\n
2.3 Soi c\u1ea7u l\u00f4 tam gi\u00e1c t\u1eeb gi\u1ea3i 7 v\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t<\/em><\/h3>\n
Soi c\u1ea7u l\u00f4 tam gi\u00e1c<\/h6>\n
2.4 Soi c\u1ea7u l\u00f4 tam gi\u00e1 t\u1eeb gi\u1ea3i 6 v\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t (d\u1ef1a v\u00e0o v\u00f2ng t\u00e2m gi\u1ea3i \u0111\u1eb7c bi\u1ec7t)<\/em><\/h3>\n
Soi c\u1ea7u l\u00f4 tam gi\u00e1c<\/h6>\n
3. C\u00e1ch soi c\u1ea7u l\u00f4 tam gi\u00e1c kh\u00e1c<\/strong><\/h2>\n
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Soi c\u1ea7u l\u00f4 tam gi\u00e1c<\/h6>\n
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4. L\u01b0u \u00fd khi ch\u01a1i l\u00f4 \u0111\u1ec1 b\u1eb1ng c\u00e1ch soi c\u1ea7u l\u00f4 tam gi\u00e1c<\/strong><\/h2>\n
c\u1ea7u \u0111\u1eb9p d\u00e0nh cho mi\u1ec1n b\u1eafc v\u00edp<\/span><\/strong><\/h3>\n