Hình chữ nhật Hình thoi Hình bình hành Hình thang cân

Home Lớp 6 Toán lớp 6 - Sách kết nối tri thức Bài 19: Hình chữ nhật. Hình thoi. Hình bình hành. Hình thang cânBài tập cơ bản

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y=\"-2.5\"><\/image> <\/g> <\/svg><\/span><\/p>","options":[["Hình thang cân là","Hình ch\u1eef nh\u1eadt là ","Hình bình hành là"],["hình 4","hình 3","hình 2"],["hình 3","hình 2","hình 4"]],"correct":[2,0,1],"level":"1","hint":"","answer":"Hình thang cân là hình 3.<\/strong><\/span><\/p>Hình ch\u1eef nh\u1eadt là hình 2.<\/strong><\/span><\/p>Hình bình hành là hình 4.<\/strong><\/span><\/p>","type":"matching","extra_type":"mat_img","time":"0","user_id":"132","test":"3","date":"2021-08-29 01:59:40","txt_size":"txt_small"},{"id":"6802","post_id":"4593","mon_id":"1158113","chapter_id":"1158129","question":"Trong các hình d\u01b0\u1edbi \u0111ây, hình nào là hình thoi?<\/p><svg height=\"300\" width=\"400\"> <g><title><\/title><rect fill=\"#fff\" height=\"302\" id=\"canvas_background\" width=\"402\" 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><path d=\"m41.6405,85.44575l70.5,-41l70.5,41l-70.5,41l-70.5,-41z\" fill=\"#ffd4aa\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <path d=\"m22.5855,259.09073l29.8125,-83l99.375,0l29.81249,83l-158.99999,0z\" fill=\"#56ffaa\" id=\"svg_2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <rect fill=\"#ffff00\" height=\"74\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"124\" x=\"214.9\" y=\"44.85\"><\/rect> <path d=\"m213.36051,247.56076l0,-74l92.99998,74l-92.99998,0z\" fill=\"#ff5656\" id=\"svg_6\" stroke=\"#ff5656\" stroke-width=\"1.5\" transform=\"rotate(-90 259.8605041503907,210.5607604980469) \"><\/path> <path d=\"m288.36051,246.56076l0,-74l92.99999,74l-92.99999,0z\" fill=\"#ff5656\" id=\"svg_7\" stroke=\"#ff5656\" stroke-width=\"1.5\" transform=\"rotate(90 334.8605041503907,209.5607604980469) \"><\/path> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_8\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"103.9\" xml:space=\"preserve\" y=\"33.85\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_9\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"30.9\" xml:space=\"preserve\" y=\"79.85\">B<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"92.9\" xml:space=\"preserve\" y=\"142.85\">C<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_11\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"172.9\" xml:space=\"preserve\" y=\"76.85\">D<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_12\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"209.9\" xml:space=\"preserve\" y=\"37.85\">E<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_13\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"338.9\" xml:space=\"preserve\" y=\"37.85\">F<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_14\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"340.9\" xml:space=\"preserve\" y=\"122.85\">G<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_15\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"201.9\" xml:space=\"preserve\" y=\"130.85\">H<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_16\" stroke=\"#ff5656\" stroke-width=\"0\" text-anchor=\"start\" x=\"38.9\" xml:space=\"preserve\" y=\"171.85\">I<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_17\" stroke=\"#ff5656\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"161.9\" xml:space=\"preserve\" y=\"167.85\">J<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_18\" stroke=\"#ff5656\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"176.9\" xml:space=\"preserve\" y=\"277.85\">K<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_20\" stroke=\"#ff5656\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"19.9\" xml:space=\"preserve\" y=\"276.85\">L<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_21\" stroke=\"#ff5656\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"283.9\" xml:space=\"preserve\" y=\"156.85\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_22\" stroke=\"#ff5656\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"368.9\" xml:space=\"preserve\" y=\"153.85\">N<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_23\" stroke=\"#ff5656\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"308.9\" xml:space=\"preserve\" y=\"262.85\">P<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_24\" stroke=\"#ff5656\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"218.9\" xml:space=\"preserve\" y=\"272.85\">Q<\/text> <\/g> <\/svg><\/span><\/p>","options":["EFGH là hình thoi","IJKL là hình thoi","MNPQ là hình thoi","BADC là hình thoi"],"correct":"4","level":"1","hint":"","answer":"Quan sát hình v\u1ebd ta có:<\/p>+ BACD là hình thoi.<\/p>+ EFGH là hình ch\u1eef nh\u1eadt.<\/p>+ IJKL là hình thang cân.<\/p>+ MNPQ là hình bình hành.<\/p>V\u1eady \u0111áp án \u0111úng là BADC là hình thoi<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"3","date":"2021-08-29 02:17:58","option_type":"txt","len":2},{"id":"6805","post_id":"4593","mon_id":"1158113","chapter_id":"1158129","question":"Trong các nh\u1eadn xét sau, nh\u1eadn xét nào \u0111úng <\/strong>v\u1ec1 hình ch\u1eef nh\u1eadt ABCD? <\/p><svg height=\"140\" width=\"190\"> <g><title><\/title><rect fill=\"#fff\" height=\"142\" id=\"canvas_background\" width=\"192\" 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><rect fill=\"#ffaaaa\" height=\"91\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"163\" x=\"12.9\" y=\"26.85\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"5.9\" xml:space=\"preserve\" y=\"19.85\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"176.9\" xml:space=\"preserve\" y=\"19.85\">B<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"177.9\" xml:space=\"preserve\" y=\"130.85\">C<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"3.9\" xml:space=\"preserve\" y=\"132.85\">D<\/text> <\/g> <\/svg><\/span><\/p>","options":["AB = AD, BC = CD","AC > BD","B\u1ed1n góc A, B, C, D b\u1eb1ng nhau"],"correct":"3","level":"1","hint":"Trong hình ch\u1eef nh\u1eadt:<\/p>- B\u1ed1n góc b\u1eb1ng nhau và b\u1eb1ng 90$^0$<\/span><\/p>- Các c\u1ea1nh \u0111\u1ed1i b\u1eb1ng nhau<\/p>- Hai \u0111\u01b0\u1eddng chéo b\u1eb1ng nhau<\/p>","answer":"Trong hình ch\u1eef nh\u1eadt ABCD:<\/p>- B\u1ed1n góc A, B, C, D b\u1eb1ng nhau và m\u1ed7i góc b\u1eb1ng 90$^0$<\/span><\/p>- Các c\u1ea1nh \u0111\u1ed1i b\u1eb1ng nhau, t\u1ee9c là AB = CD, BC = AD (AB và CD là hai c\u1ea1nh \u0111\u1ed1i nhau, BC và AD là hai c\u1ea1nh \u0111\u1ed1i nhau)<\/p>- Hai \u0111\u01b0\u1eddng chéo b\u1eb1ng nhau, t\u1ee9c là AC = BD<\/p>Xét các \u0111áp án:<\/p>AB = AD, BC = CD      sai<\/span> vì AB và AD không là hai c\u1ea1nh \u0111\u1ed1i nhau, BC và CD không là hai c\u1ea1nh \u0111\u1ed1i nhau<\/p>AC > BD        sai<\/span> vì AC = BD <\/p>B\u1ed1n góc A, B, C, D b\u1eb1ng nhau     \u0111úng<\/span><\/p>V\u1eady \u0111áp án \u0111úng là <\/strong><\/span>B\u1ed1n góc A, B, C, D b\u1eb1ng nhau<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"3","date":"2021-08-29 02:43:52","option_type":"txt","len":2}]}