Thực hành và trải nghiệm vẽ hai đường thẳng vuông góc

Home Lớp 4 Toán lớp 4 - Sách Kết nối tri thức Bài 28: Thực hành và trải nghiệm vẽ hai đường thẳng vuông gócBài tập cơ bản

{"common":{"save":0,"post_id":"6819","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"961","post_id":"6819","mon_id":"1159012","chapter_id":"1159025","question":"Dùng ê ke \u0111\u1ec3 ki\u1ec3m tra xem hai \u0111\u01b0\u1eddng th\u1eb3ng nào vuông góc v\u1edbi nhau?<\/p><svg height=\"100\" width=\"400\"> <g><title><\/title><rect fill=\"#ffffaa\" height=\"102\" id=\"canvas_background\" width=\"402\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_1\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><g id=\"svg_15\"> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"187.00001\" xml:space=\"preserve\" y=\"70.81001\">G<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, 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<ellipse cx=\"79.50001\" cy=\"19.31\" fill=\"#000000\" fill-opacity=\"null\" id=\"svg_19\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\"><\/ellipse> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"44.00001\" xml:space=\"preserve\" y=\"67.81\">K<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"5.00001\" xml:space=\"preserve\" y=\"47.81\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_23\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"81.00001\" xml:space=\"preserve\" y=\"32.81\">N<\/text> <\/g> <g id=\"svg_27\"> <ellipse cx=\"301.00001\" cy=\"40.81\" fill=\"#000000\" id=\"svg_30\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"null\"><\/ellipse> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"291.00001\" xml:space=\"preserve\" y=\"35.81\">A<\/text> <g id=\"svg_6\"> <g id=\"svg_29\"> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_25\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"284.00001\" x2=\"386.00002\" y1=\"40.81\" y2=\"40.81\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_26\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"343.00001\" x2=\"335.00001\" y1=\"2.81\" y2=\"88.81001\"><\/line> <\/g> <ellipse cx=\"335.00001\" cy=\"80.81\" fill=\"#000000\" id=\"svg_2\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"null\"><\/ellipse> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"345.00001\" xml:space=\"preserve\" y=\"38.81\">D<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"339.00001\" xml:space=\"preserve\" y=\"90.81001\">B<\/text> <\/g> <\/g> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> Hai \u0111\u01b0\u1eddng th\u1eb3ng KN và KM","B.<\/strong> Hai \u0111\u01b0\u1eddng th\u1eb3ng GE và GF","C.<\/strong> Hai \u0111\u01b0\u1eddng th\u1eb3ng DA và DB","D.<\/strong> Không có hai \u0111\u01b0\u1eddng th\u1eb3ng nào vuông góc."],"correct":"2","level":"1","hint":"","answer":"Ch\u1ecdn B.<\/strong> Hai \u0111\u01b0\u1eddng th\u1eb3ng GE và GF<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-10-15 03:43:22","option_type":"txt","len":3},{"id":"962","post_id":"6819","mon_id":"1159012","chapter_id":"1159025","question":"Dùng ê ke ki\u1ec3m tra góc vuông và nêu tên các c\u1eb7p \u0111o\u1ea1n th\u1eb3ng vuông góc.<\/p><svg height=\"150\" width=\"170\"> <g><title><\/title><rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"172\" 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_7\"> <path d=\"m31.85006,27.17094l104.99995,0l0,77.59999l-52.50001,19.40002l-52.5,-19.40002l0.00006,-77.59999z\" fill=\"#ffffaa\" id=\"svg_1\" stroke=\"#000000\" stroke-width=\"1.5\"><\/path> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"6.00001\" xml:space=\"preserve\" y=\"26.81\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"141.00001\" xml:space=\"preserve\" y=\"26.81\">N<\/text> <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=\"143.00001\" xml:space=\"preserve\" y=\"116.81001\">P<\/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=\"11.00001\" xml:space=\"preserve\" y=\"119.81001\">Q<\/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\" x=\"77.00001\" xml:space=\"preserve\" y=\"145.81001\">R<\/text> <\/g> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> MN và MQ; QM và QR","B.<\/strong> PN và PR; NM và NP","C.<\/strong> MN và MQ; NM và NP","D.<\/strong> RP và RQ; NM và NP"],"correct":"3","level":"1","hint":"","answer":"Ch\u1ecdn C.<\/strong> MN và MQ; NM và NP<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-10-15 03:47:49","option_type":"txt","len":2},{"id":"969","post_id":"6819","mon_id":"1159012","chapter_id":"1159025","question":"Dùng ê ke ki\u1ec3m tra xem \u0111o\u1ea1n th\u1eb3ng nào vuông góc v\u1edbi \u0111o\u1ea1n th\u1eb3ng OA?<\/p><svg height=\"150\" width=\"150\"> <g><title><\/title><rect fill=\"#aad4ff\" height=\"152\" id=\"canvas_background\" width=\"152\" 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_21\"> <g id=\"svg_15\" transform=\"rotate(42.77853012084961 79.50038146972656,69.80999755859375) \"> <g id=\"svg_4\"> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"80.00001\" x2=\"80.00001\" y1=\"-22.19\" y2=\"69.81001\"><\/line> <ellipse cx=\"80.00001\" cy=\"-2.19\" fill=\"#000000\" id=\"svg_3\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <g id=\"svg_7\" transform=\"rotate(90 125.00001525878906,68.8100051879883) \"> <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=\"125.00001\" x2=\"125.00001\" y1=\"22.81\" y2=\"114.81001\"><\/line> <ellipse cx=\"125.00001\" cy=\"42.81\" fill=\"#000000\" id=\"svg_6\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <g id=\"svg_10\" transform=\"rotate(-95 34.00000762939455,72.81001281738283) \"> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_8\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"34.00001\" x2=\"34.00001\" y1=\"26.81\" y2=\"118.81001\"><\/line> <ellipse cx=\"34.00001\" cy=\"46.81\" fill=\"#000000\" id=\"svg_9\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <g id=\"svg_14\" transform=\"rotate(180 80.00000762939453,115.80999755859375) \"> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_12\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"80.00001\" x2=\"80.00001\" y1=\"69.81\" y2=\"161.81001\"><\/line> <ellipse cx=\"80.00001\" cy=\"89.81\" fill=\"#000000\" id=\"svg_13\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/g> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"73.00001\" xml:space=\"preserve\" y=\"93.81\">O<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"129.00001\" xml:space=\"preserve\" y=\"35.81\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_18\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"115.00001\" xml:space=\"preserve\" y=\"137.81001\">B<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"6.00001\" xml:space=\"preserve\" y=\"45.81\">C<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_20\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"32.00001\" xml:space=\"preserve\" y=\"143.81001\">D<\/text> <\/g> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> OC","B.<\/strong> OD","C.<\/strong> OB","D.<\/strong> Không có \u0111o\u1ea1n th\u1eb3ng nào."],"correct":"3","level":"1","hint":"","answer":"Ch\u1ecdn C.<\/strong> OB<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-10-15 04:04:50","option_type":"txt","len":2}]}