Hai đường thẳng vuông góc

Home Lớp 4 Toán lớp 4 - Sách Kết nối tri thức Bài 27 - Hai đường thẳng vuông gócBài tập cơ bản

{"common":{"save":0,"post_id":"6816","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1486","post_id":"6816","mon_id":"1159012","chapter_id":"1159025","question":"Hai \u0111\u01b0\u1eddng th\u1eb3ng vuông góc v\u1edbi nhau thì t\u1ea1o v\u1edbi nhau m\u1ed9t góc b\u1eb1ng <\/p>","options":["A.<\/strong> 90°","B.<\/strong> 80°","C.<\/strong> 180°","D.<\/strong> 100°"],"correct":"1","level":"1","hint":"","answer":"Hai \u0111\u01b0\u1eddng th\u1eb3ng vuông góc v\u1edbi nhau thì t\u1ea1o v\u1edbi nhau m\u1ed9t góc b\u1eb1ng   A.<\/strong> 90°.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-02 02:50:02","option_type":"txt","len":1},{"id":"1487","post_id":"6816","mon_id":"1159012","chapter_id":"1159025","question":"Dùng ê-ke \u0111\u1ec3 ki\u1ec3m tra hai \u0111\u01b0\u1eddng th\u1eb3ng sau và ch\u1ecdn ph\u01b0\u01a1ng án \u0111úng nh\u1ea5t?<\/p><svg height=\"120\" width=\"130\"> <g><title><\/title><rect fill=\"#fff\" height=\"122\" id=\"canvas_background\" width=\"132\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_8\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><g id=\"svg_7\"> <g id=\"svg_3\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"104\" x2=\"16\" y1=\"26.25\" y2=\"90.25\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(90 60,58.25000000000001) \" x1=\"104\" x2=\"16\" y1=\"26.25\" y2=\"90.25\"><\/line> <\/g> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"106\" xml:space=\"preserve\" y=\"40.25\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"43\" xml:space=\"preserve\" y=\"60.25\">I<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"94\" xml:space=\"preserve\" y=\"100.25\">B<\/text> <\/g> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> IA và IB không vuông góc.","B.<\/strong> IA và IB vuông góc.","C.<\/strong> IA và AB vuông góc","D.<\/strong> IB và AB vuông góc"],"correct":"2","level":"1","hint":"","answer":"Ch\u1ecdn   B.<\/strong> IA và IB vuông góc.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-02 02:55:10","option_type":"txt","len":3},{"id":"1490","post_id":"6816","mon_id":"1159012","chapter_id":"1159025","question":"Dùng ê-ke ki\u1ec3m tra xem hai \u0111\u01b0\u1eddng th\u1eb3ng nào sau \u0111ây vuông góc?<\/p><svg height=\"200\" width=\"210\"> <g><title><\/title><rect fill=\"#d4ffaa\" height=\"202\" id=\"canvas_background\" width=\"212\" 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><line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"11\" x2=\"205\" y1=\"50.25\" y2=\"114.25\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(90 73,79.25000000000001) \" x1=\"-24\" x2=\"170\" y1=\"47.25\" y2=\"111.25\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(100 141,100.24999999999999) \" x1=\"44\" x2=\"238\" y1=\"68.25\" y2=\"132.25\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"11\" xml:space=\"preserve\" y=\"43.25\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"52\" xml:space=\"preserve\" y=\"87.25\">B<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"186\" xml:space=\"preserve\" y=\"35.25\">C<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"27\" xml:space=\"preserve\" y=\"165.25\">D<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"109\" xml:space=\"preserve\" y=\"182.25\">E<\/text> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> AB và BE","B.<\/strong> AB và CE","C.<\/strong> BD và CE","D.<\/strong> AB và BD"],"correct":"4","level":"1","hint":"","answer":"Ch\u1ecdn  D.<\/strong> AB và BD.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-02 03:01:49","option_type":"txt","len":2}]}