Đường trung bình của tam giác

Home Lớp 8 Toán lớp 8 - Sách Kết nối tri thức Bài 16 - Đường trung bình của tam giácBài tập cơ bản

{"common":{"save":0,"post_id":"6580","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6191","post_id":"6580","mon_id":"1158921","chapter_id":"1158932","question":"Ch\u1ecdn phát bi\u1ec3u \u0111úng.<\/strong><\/p>","options":["A.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác là \u0111o\u1ea1n th\u1eb3ng n\u1ed1i trung \u0111i\u1ec3m c\u1ee7a hai c\u1ea1nh c\u1ee7a tam giác.","B.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác là \u0111o\u1ea1n th\u1eb3ng n\u1ed1i hai \u0111i\u1ec3m c\u1ee7a tam giác.","C.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác là \u0111\u01b0\u1eddng th\u1eb3ng song song v\u1edbi m\u1ed9t c\u1ea1nh c\u1ee7a tam giác.","D.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác là \u0111\u01b0\u1eddng th\u1eb3ng n\u1ed1i hai \u0111\u1ec9nh c\u1ee7a tam giác."],"correct":"1","level":"1","hint":"","answer":"Phát bi\u1ec3u \u0111úng <\/strong>là   A.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác là \u0111o\u1ea1n th\u1eb3ng n\u1ed1i trung \u0111i\u1ec3m c\u1ee7a hai c\u1ea1nh c\u1ee7a tam giác.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-07-30 04:23:05","option_type":"txt","len":3},{"id":"6193","post_id":"6580","mon_id":"1158921","chapter_id":"1158932","question":"Ch\u1ecdn phát bi\u1ec3u sai<\/strong>.<\/p>","options":["A.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác thì song song v\u1edbi m\u1ed9t c\u1ea1nh c\u1ee7a tam giác và b\u1eb1ng n\u1eeda c\u1ea1nh \u1ea5y.","B.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác thì b\u1eb1ng m\u1ed9t c\u1ea1nh c\u1ee7a tam giác.","C.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác thì b\u1eb1ng n\u1eeda m\u1ed9t c\u1ea1nh c\u1ee7a tam giác.","D.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác thì song song v\u1edbi m\u1ed9t c\u1ea1nh c\u1ee7a tam giác."],"correct":"2","level":"1","hint":"","answer":"Phát bi\u1ec3u sai <\/strong>là   B.<\/strong> \u0110\u01b0\u1eddng trung bình c\u1ee7a tam giác thì b\u1eb1ng m\u1ed9t c\u1ea1nh c\u1ee7a tam giác.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-07-30 04:25:43","option_type":"txt","len":3},{"id":"6194","post_id":"6580","mon_id":"1158921","chapter_id":"1158932","question":"Cho tam giác ABC có M, N l\u1ea7n l\u01b0\u1ee3t là trung \u0111i\u1ec3m c\u1ee7a AB và AC. K\u1ebft lu\u1eadn nào sau \u0111ây là sai<\/strong>?<\/p>","options":["A.<\/strong> MN \/\/ BC","B.<\/strong> BC = 2MN","C.<\/strong> MN = $\\dfrac{1}{2}$<\/span> BC","D.<\/strong> MN \/\/ AB"],"correct":"4","level":"1","hint":"","answer":"<svg height=\"180\" width=\"250\"> <g><title><\/title><rect fill=\"#fff\" height=\"182\" id=\"canvas_background\" width=\"252\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><g id=\"svg_14\"> <g id=\"svg_8\"> <g id=\"svg_3\"> <path d=\"m17.06877,167.51823l136,-147.99999l80.00001,147.99999l-161.00001,0z\" fill=\"#fff\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"80.31535\" x2=\"196.31535\" y1=\"98.52273\" y2=\"99\"><\/line> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"110.31535\" xml:space=\"preserve\" y=\"68.52273\">\\<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"43.31535\" xml:space=\"preserve\" y=\"142.52273\">\\<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"rotate(50 176.22442626953125,57.340911865234396) \" x=\"170.31535\" xml:space=\"preserve\" y=\"65.52273\">x<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"rotate(50 210.2244262695312,121.34091186523439) \" x=\"204.31535\" xml:space=\"preserve\" y=\"129.52273\">x<\/text> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"144.31535\" xml:space=\"preserve\" y=\"16.52273\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"3.31535\" xml:space=\"preserve\" y=\"174.52273\">B<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"234.31535\" xml:space=\"preserve\" y=\"172.52273\">C<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"61.31535\" xml:space=\"preserve\" y=\"98.52273\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"197.31535\" xml:space=\"preserve\" y=\"99.52273\">N<\/text> <\/g> <\/g> <\/svg><\/span><\/p>K\u1ebft lu\u1eadn sai <\/strong>là   D.<\/strong> MN \/\/ AB<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-07-30 04:30:59","option_type":"math","len":0}]}