C\u1ea7u tam gi\u00e1c ma thu\u1eadt<\/figcaption><\/figure>\nD\u01b0\u1edbi \u0111\u00e2y ch\u00ednh l\u00e0 2 c\u00e1ch m\u00e0 nh\u1eefng l\u00f4 th\u1ee7 th\u01b0\u1eddng r\u1ea5t hay s\u1eed d\u1ee5ng m\u1ed7i khi nh\u1eadn th\u1ea5y c\u1ea7u k\u00e8o \u0111ang d\u1ef1 b\u00e1o v\u00f2ng khung tam gi\u00e1c ma thu\u1eadt xu\u1ea5t hi\u1ec7n.<\/span><\/p>\nD\u1ef1a v\u00e0o c\u00e1c d\u1eef li\u1ec7u c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t.<\/b><\/h3>\n
\u0110\u00e2y ch\u00ednh l\u00e0 c\u00e1ch soi c\u1ea7u tam gi\u00e1c ph\u1ed5 bi\u1ebfn nh\u1ea5t, anh em l\u1ea7n l\u01b0\u1ee3t l\u00e0m nh\u1eefng b\u01b0\u1edbc nh\u01b0 sau:\u00a0<\/span><\/p>\nB\u01b0\u1edbc 1: Ph\u00e2n t\u00edch v\u00e0 li\u1ec7t k\u00ea 3 v\u1ecb tr\u00ed sau \u0111\u1ec3 soi c\u1ea7u: Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t, gi\u1ea3i nh\u1ea5t v\u00e0 c\u1ea3 gi\u1ea3i 6 th\u1ee9 2 (gi\u1ea3i 6.2). \u0110\u1ec3 t\u00ecm ra con s\u1ed1 th\u1ee9 nh\u1ea5t c\u1ee7a con b\u1ea1ch th\u1ee7 th\u00ec t\u00ecm t\u1eeb gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i nh\u1ea5t. C\u00f2n mu\u1ed1n t\u00ecm con s\u1ed1 th\u1ee9 2 th\u00ec t\u00ecm d\u1ef1a v\u00e0o gi\u1ea3i 6 th\u1ee9 2 nh\u00e9 anh em.\u00a0<\/span><\/p>\nV\u00ed d\u1ee5: Ta li\u1ec7t k\u00ea ra \u0111\u01b0\u1ee3c: Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ch\u00ednh l\u00e0 89736, gi\u1ea3i nh\u1ea5t 24489, c\u00f2n gi\u1ea3i 6 th\u1ee9 2 l\u00e0 350.\u00a0<\/span><\/p>\nB\u01b0\u1edbc 2: Lo\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c con s\u1ed1 li\u00ean quan v\u1edbi nhau nh\u01b0 l\u00e0: c\u00f9ng ch\u1eb5n, l\u1ebb, gi\u1ed1ng nhau v\u00e0 xu\u1ea5t hi\u1ec7n nhi\u1ec1u l\u1ea7n\u2026 V\u1eady b\u1ea1n c\u1ea7n gi\u1eef l\u1ea1i c\u00e1c s\u1ed1 kh\u00e1c nhau.<\/span><\/p>\nD\u1ef1a v\u00e0o v\u00f2ng t\u00e2m c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 soi c\u1ea7u tam gi\u00e1c<\/b><\/h3>\n
C\u00e1ch n\u00e0y s\u1ebd \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh h\u01a1n r\u1ea5t nhi\u1ec1u khi anh em ch\u1ec9 vi\u1ec7c \u00e1p c\u00e1i tam gi\u00e1c v\u00e0o b\u1ea3ng k\u1ebft qu\u1ea3, v\u1edbi 3 \u0111\u1ec9nh ch\u00ednh l\u00e0 t\u00e2m c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t – s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i 6 th\u1ee9 nh\u1ea5t (gi\u1ea3i 6.1) v\u00e0 s\u1ed1 \u0111u\u00f4i c\u1ee7a gi\u1ea3i 6 th\u1ee9 3 (gi\u1ea3i 6.3). Con s\u1ed1 \u0111\u1ea7u c\u1ee7a con b\u1ea1ch th\u1ee7 c\u1ea7n t\u00ecm ch\u00ednh l\u00e0 t\u00e2m gi\u1ea3i \u0110B. T\u1eeb \u0111\u00f3 h\u00e3y gh\u00e9p v\u1edbi \u0111\u1ea7u gi\u1ea3i 6.1 v\u00e0 \u0111u\u00f4i gi\u1ea3i 6.3 l\u00e0 anh em s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c 2 con b\u1ea1ch th\u1ee7.<\/span><\/p>\nSoi c\u1ea7u tam gi\u00e1c \u00e1p d\u1ee5ng v\u00e0o XSMB<\/b><\/h2>\n
C\u00e1ch soi c\u1ea7u tam gi\u00e1c nh\u00ecn c\u00f3 v\u1ebb kh\u00e1 ph\u1ee9c t\u1ea1p v\u00e0 c\u00f3 nhi\u1ec1u b\u01b0\u1edbc nh\u01b0ng th\u1eadt ra th\u00ec anh em ch\u1ec9 c\u1ea7n soi v\u00e0i l\u1ea7n l\u00e0 s\u1ebd quen th\u00f4i. Sau \u0111\u00f3 t\u1ed1c \u0111\u1ed9 soi c\u1ea7u c\u1ee7a c\u00e1c anh em s\u1ebd t\u0103ng m\u1ed9t c\u00e1ch ch\u00f3ng m\u1eb7t. N\u00f3 kh\u00f4ng h\u1ec1 kh\u00f3 gi\u1ed1ng nh\u01b0 anh em ngh\u0129 \u0111\u00e2u.\u00a0<\/span><\/p>\n