C\u00e2u 43:<\/b>\u00a0Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh b\u00ecnh h\u00e0nh, g\u1ecdi M l\u00e0 trung \u0111i\u1ec3m c\u1ee7a SC, m\u1eb7t ph\u1eb3ng \u0111i qua AM v\u00e0 song song v\u1edbi BD c\u1eaft SB, SD l\u1ea7n l\u01b0\u1ee3t t\u1ea1i N v\u00e0 P. T\u00ednh t\u1ec9 s\u1ed1 k gi\u1eefa th\u1ec3 t\u00edch h\u00ecnh ch\u00f3p S.ANMP v\u00e0 th\u1ec3 t\u00edch h\u00ecnh ch\u00f3p S.ABCD.<\/p>\n

A. k = 1\/2\u00a0\u00a0\u00a0B. k = 1\/3\u00a0\u00a0\u00a0C. k = 1\/4 \u00a0\u00a0\u00a0D. k = 2\/9<\/p>\n

C\u00e2u 44:<\/b>\u00a0T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh vu\u00f4ng c\u1ea1nh b\u1eb1ng 3a, SA=4a, SB = SD = 5a.<\/p>\n

A. V = 8a^{3<\/sup>\u00a0\u00a0\u00a0\u00a0B. V = 12a3<\/sup>\u00a0\u00a0\u00a0\u00a0C. V = 24a3<\/sup>\u00a0\u00a0\u00a0\u00a0D. V = 36a3<\/sup><\/p>\n}

C\u00e2u 45:<\/b>\u00a0Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 SA vu\u00f4ng g\u00f3c v\u1edbi \u0111\u00e1y, SC t\u1ea1o v\u1edbi \u0111\u00e1y m\u1ed9t g\u00f3c b\u1eb1ng 60^{o<\/sup>\u00a0. G\u1ecdi H l\u00e0 h\u00ecnh chi\u1ebfu c\u1ee7a A l\u00ean SC. T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a h\u00ecnh ch\u00f3p \u0111\u00e3 cho, bi\u1ebft r\u1eb1ng th\u1ec3 t\u00edch h\u00ecnh ch\u00f3p H.ABCD b\u1eb1ng<\/p>\n}

<\/p>\n

C\u00e2u 46:<\/b>\u00a0Cho h\u00ecnh ch\u00f3p S.ABCD, c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh vu\u00f4ng c\u1ea1nh a, SA vu\u00f4ng g\u00f3c v\u1edbi \u0111\u00e1y, SC t\u1ea1o v\u1edbi \u0111\u00e1y m\u1ed9t g\u00f3c b\u1eb1ng 60^{o<\/sup>\u00a0. G\u1ecdi H l\u00e0 h\u00ecnh chi\u1ebfu c\u1ee7a A l\u00ean SC. T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a h\u00ecnh ch\u00f3p H.ABCD<\/p>\n}

<\/p>\n

C\u00e2u 47:<\/b>\u00a0Cho h\u00ecnh thang vu\u00f4ng ABCD, vu\u00f4ng t\u1ea1i A v\u00e0 D, c\u00f3 AB = AD = a, DC = 2a. T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a h\u00ecnh ch\u00f3p S.ABCD. Bi\u1ebft r\u1eb1ng h\u00ecnh chi\u1ebfu c\u1ee7a S l\u00ean m\u1eb7t (ABCD) tr\u00f9ng v\u1edbi trung \u0111i\u1ec3m c\u1ee7a BD v\u00e0 SA t\u1ea1o v\u1edbi \u0111\u00e1y m\u1ed9t g\u00f3c b\u1eb1ng 60^{o<\/sup><\/p>\n}

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C\u00e2u 48:<\/b>\u00a0T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a kh\u1ed1i ch\u00f3p l\u1ee5c gi\u00e1c \u0111\u1ec1u c\u00f3 \u0111\u00e1y n\u1ed9i ti\u1ebfp \u0111\u01b0\u1eddng tr\u00f2n b\u00e1n k\u00ednh r, c\u1ea1nh b\u00ean t\u1ea1o v\u1edbi \u0111\u00e1y m\u1ed9t g\u00f3c b\u1eb1ng 60^{o<\/sup><\/p>\n}

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C\u00e2u 49:<\/b>\u00a0T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a kh\u1ed1i t\u1ee9 di\u1ec7n ABCD, c\u00f3 (ABC) \u22a5 (BCD), g\u00f3c BAC = g\u00f3c CBD = 90^{o<\/sup>, AB = a, BC = = BD = 2a<\/p>\n}

<\/p>\n

C\u00e2u 50:<\/b>\u00a0Cho h\u00ecnh l\u0103ng tr\u1ee5 ABC.A’B’C’ . G\u1ecdi A”, B”, C” l\u1ea7n l\u01b0\u1ee3t l\u00e0 trung \u0111i\u1ec3m c\u1ee7a c\u00e1c c\u1ea1nh AA’, BB’, CC’. T\u00ednh t\u1ec9 s\u1ed1 k gi\u1eefa th\u1ec3 t\u00edch c\u1ee7a l\u0103ng tr\u1ee5 ABC.A”B”C” v\u00e0 th\u1ec3 t\u00edch l\u0103ng tr\u1ee5 ABC.A’B’C’<\/p>\n

A. k = 1\/8 \u00a0\u00a0\u00a0B. k = 1\/6 \u00a0\u00a0\u00a0C. k = 1\/4 \u00a0\u00a0\u00a0D. k = 1\/2<\/p>\n

C\u00e2u 51:<\/b>\u00a0T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a kh\u1ed1i l\u0103ng tr\u1ee5 tam gi\u00e1c \u0111\u1ec1u ABC.A’B’C’ , c\u00f3 c\u1ea1nh \u0111\u00e1y b\u1eb1ng a, m\u1eb7t ph\u1eb3ng (A\u2019BC) t\u1ea1o v\u1edbi \u0111\u00e1y m\u1ed9t g\u00f3c b\u1eb1ng 60^{o<\/sup><\/p>\n}

<\/p>\n

C\u00e2u 52:<\/b>\u00a0T\u00ednh th\u1ec3 t\u00edch V c\u1ee7a kh\u1ed1i l\u0103ng tr\u1ee5 tam gi\u00e1c \u0111\u1ec1u ABC.A’B’C’ , c\u00f3 c\u1ea1nh \u0111\u00e1y b\u1eb1ng a, di\u1ec7n t\u00edch tam gi\u00e1c A\u2019BC b\u1eb1ng<\/p>\n

<\/p>\n

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0110\u00e1p \u00e1n<\/b><\/p>\n\n\n\n

43-B<\/td>\n

44-B<\/td>\n

45-C<\/td>\n

46-B<\/td>\n

47-C<\/td>\n

48-A<\/td>\n

49-C<\/td>\n

50-D<\/td>\n

51-C<\/td>\n

52-B<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/p>\n","protected":false},"excerpt":{"rendered":" C\u00e2u 43:\u00a0Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh b\u00ecnh h\u00e0nh, g\u1ecdi M l\u00e0 trung \u0111i\u1ec3m c\u1ee7a SC, m\u1eb7t ph\u1eb3ng \u0111i qua AM v\u00e0 song song v\u1edbi BD c\u1eaft SB, SD l\u1ea7n l\u01b0\u1ee3t t\u1ea1i N v\u00e0 P. T\u00ednh t\u1ec9 s\u1ed1 k gi\u1eefa th\u1ec3 t\u00edch h\u00ecnh ch\u00f3p S.ANMP v\u00e0 th\u1ec3 t\u00edch h\u00ecnh ch\u00f3p S.ABCD. A. k […]<\/p>\n","protected":false},"author":3,"featured_media":28856,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[157],"tags":[1450,1448],"yoast_head":"\n