Sự đồng quy của ba đường trung tuyến, ba đường phân giác trong một tam giác

Home Lớp 7 Toán lớp 7 - Sách kết nối tri thức Bài 34: Sự đồng quy của ba đường trung tuyến, ba đường phân giác trong một tam giácBài tập cơ bản

{"common":{"save":0,"post_id":"5839","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8690","post_id":"5839","mon_id":"1158532","chapter_id":"1158662","question":"Cho ΔABC có M là trung \u0111i\u1ec3m c\u1ee7a c\u1ea1nh BC. Khi \u0111ó \u0111o\u1ea1n th\u1eb3ng AM \u0111\u01b0\u1ee3c g\u1ecdi là<\/p>","options":["A.<\/strong> \u0111\u01b0\u1eddng phân giác xu\u1ea5t phát t\u1eeb \u0111\u1ec9nh A","B.<\/strong> \u0111\u01b0\u1eddng trung tuy\u1ebfn \u1ee9ng v\u1edbi c\u1ea1nh BC","C.<\/strong> \u0111\u01b0\u1eddng trung tuy\u1ebfn xu\u1ea5t phát t\u1eeb \u0111\u1ec9nh A","D.<\/strong> \u0111\u01b0\u1eddng trung tr\u1ef1c \u1ee9ng v\u1edbi c\u1ea1nh BC"],"correct":"[\"2\",\"3\"]","level":"1","hint":"\u0110o\u1ea1n th\u1eb3ng n\u1ed1i m\u1ed9t \u0111\u1ec9nh c\u1ee7a tam giác v\u1edbi trung \u0111i\u1ec3m c\u1ee7a c\u1ea1nh \u0111\u1ed1i di\u1ec7n là \u0111\u01b0\u1eddng trung tuy\u1ebfn xu\u1ea5t phát t\u1eeb \u0111\u1ec9nh \u0111ó (ho\u1eb7c \u1ee9ng v\u1edbi c\u1ea1nh \u0111ó).<\/p>","answer":"Cho ΔABC có M là trung \u0111i\u1ec3m c\u1ee7a c\u1ea1nh BC. Khi \u0111ó \u0111o\u1ea1n th\u1eb3ng AM \u0111\u01b0\u1ee3c g\u1ecdi là <\/p>B.<\/strong> \u0111\u01b0\u1eddng trung tuy\u1ebfn \u1ee9ng v\u1edbi c\u1ea1nh BC<\/span><\/p>ho\u1eb7c C.<\/strong> \u0111\u01b0\u1eddng trung tuy\u1ebfn xu\u1ea5t phát t\u1eeb \u0111\u1ec9nh A<\/span><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"131","test":"1","date":"2022-06-04 07:13:10","option_type":"txt","len":3},{"id":"8692","post_id":"5839","mon_id":"1158532","chapter_id":"1158662","question":"M\u1ed9t tam giác có bao nhiêu \u0111\u01b0\u1eddng trung tuy\u1ebfn?<\/p>","options":["1","2","3"],"correct":"3","level":"1","hint":"","answer":"M\u1ed7i tam giác có ba <\/span>\u0111\u01b0\u1eddng trung tuy\u1ebfn xu\u1ea5t phát t\u1eeb ba \u0111\u1ec9nh c\u1ee7a nó.<\/p>\u0110áp án \u0111úng là  3<\/span><\/p>","type":"choose","extra_type":"star","time":"0","user_id":"131","test":"1","date":"2022-06-04 07:15:34","option_type":"txt","len":0},{"id":"8695","post_id":"5839","mon_id":"1158532","chapter_id":"1158662","question":"Cho tam giác ABC, có M là trung \u0111i\u1ec3m c\u1ee7a AC. Khi \u0111ó \u0111\u01b0\u1eddng trung tuy\u1ebfn xu\u1ea5t phát t\u1eeb \u0111\u1ec9nh B là <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/><\/p>","options":["BA","BM","BC"],"correct":"2","level":"1","hint":"","answer":"Cho tam giác ABC, có M là trung \u0111i\u1ec3m c\u1ee7a AC. Khi \u0111ó \u0111\u01b0\u1eddng trung tuy\u1ebfn xu\u1ea5t phát t\u1eeb \u0111\u1ec9nh B là   BM<\/span><\/p><svg height=\"150\" width=\"200\"> <g><title><\/title><rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"202\" 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_4\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"17.0125\" x2=\"168.0125\" y1=\"112.2375\" y2=\"116.2375\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"72.0125\" x2=\"17.0125\" y1=\"24.2375\" y2=\"114.2375\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"166.0125\" x2=\"72.0125\" y1=\"115.2375\" y2=\"25.2375\"><\/line> <\/g> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"19.0125\" x2=\"121.0125\" y1=\"111.2375\" y2=\"71.2375\"><\/line> <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\" x=\"0.0125\" xml:space=\"preserve\" y=\"119.2375\">B<\/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\" x=\"54.0125\" xml:space=\"preserve\" y=\"24.2375\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"157.0125\" xml:space=\"preserve\" y=\"135.2375\">C<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"128.0125\" xml:space=\"preserve\" y=\"67.2375\">M<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"91.0125\" x2=\"104.0125\" y1=\"52.2375\" y2=\"47.2375\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"133.0125\" x2=\"146.0125\" y1=\"95.2375\" y2=\"88.2375\"><\/line> <\/g> <\/svg><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-04 07:19:29","option_type":"txt","len":0}]}