Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n
B\u00e0i 4 (1 \u0111i\u1ec3m).<\/strong><\/p>\n 2, X\u1ebfp 6 h\u1ecdc sinh trong \u0111\u00f3 c\u00f3 hai b\u1ea1n A v\u00e0 B, ng\u1ed3i v\u00e0o m\u1ed9t gh\u1ebf d\u00e0i \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 th\u1ee9 t\u1ef1 t\u1eeb 1 \u0111\u1ebfn 6. T\u00ednh x\u00e1c su\u1ea5t \u0111\u1ec3 hai b\u1ea1n A v\u00e0 B \u0111\u01b0\u1ee3c ng\u1ed3i \u1edf hai \u0111\u1ea7u c\u1ee7a gh\u1ebf (\u1edf v\u1ecb tr\u00ed \u0111\u00e1nh s\u1ed1 1 v\u00e0 6).<\/p>\n B\u00e0i 6 (1 \u0111i\u1ec3m)<\/strong><\/p>\n Cho h\u00ecnh ch\u00f3p S.ABCD, c\u00f3 \u0111\u00e1y ABCD l\u00e0 h\u00ecnh vu\u00f4ng c\u1ea1nh a, hai m\u1eb7t ph\u1eb3ng (SAB) v\u00e0 (SAD) c\u00f9ng vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng (ABCD). G\u00f3c gi\u1eefa SD v\u00e0 m\u1eb7t \u0111\u00e1y h\u00ecnh ch\u00f3p b\u1eb1ng 45 \u0111\u1ed9. T\u00ednh th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p S.ABCD v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa hai \u0111\u01b0\u1eddng th\u1eb3ng AC, SD.<\/p>\n <\/p>\n<\/p>\n T\u1ea5t c\u1ea3 n\u1ed9i dung b\u00e0i vi\u1ebft. C\u00e1c em h\u00e3y xem th\u00eam v\u00e0 t\u1ea3i file chi ti\u1ebft t\u1ea1i \u0111\u00e2y:<\/strong>Download<\/p>\n","protected":false},"excerpt":{"rendered":" \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n – THPT L\u00fd Th\u01b0\u1eddng Ki\u1ec7t, t\u1ec9nh B\u00ecnh Thu\u1eadn, \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c thi l\u1ea7n 1 n\u0103m 2016, c\u00e1c em theo d\u00f5i chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n B\u00e0i 4 (1 \u0111i\u1ec3m). 2, X\u1ebfp 6 h\u1ecdc sinh trong \u0111\u00f3 c\u00f3 hai […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[28],"tags":[],"yoast_head":"\n