Quan hệ đường vuông góc và đường xiên

Home Lớp 7 Toán lớp 7 - Sách kết nối tri thức Bài 32: Quan hệ đường vuông góc và đường xiênBài tập nâng cao

{"common":{"save":0,"post_id":"5835","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8650","post_id":"5835","mon_id":"1158532","chapter_id":"1158662","question":"Cho \u0111\u01b0\u1eddng th\u1eb3ng d và \u0111i\u1ec3m A không thu\u1ed9c d. Trong các kh\u1eb3ng \u0111\u1ecbnh sau, kh\u1eb3ng \u0111\u1ecbnh nào là \u0111úng?<\/p>","options":["A.<\/strong> Có vô s\u1ed1 \u0111\u01b0\u1eddng vuông góc k\u1ebb t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng d","B.<\/strong> Có vô s\u1ed1 \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng d","C.<\/strong> Có duy nh\u1ea5t m\u1ed9t \u0111\u01b0\u1eddng vuông góc k\u1ebb t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng d","D.<\/strong> Có duy nh\u1ea5t m\u1ed9t \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng d"],"correct":"[\"2\",\"3\"]","level":"3","hint":"","answer":"<svg height=\"150\" width=\"305\"> <g><title><\/title><rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"307\" 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=\"11.30625\" x2=\"300\" y1=\"119.2375\" y2=\"119\"><\/line> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"64.30625\" xml:space=\"preserve\" y=\"23.2375\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"281.30625\" xml:space=\"preserve\" y=\"112.2375\">d<\/text> <line fill=\"none\" id=\"svg_5\" stroke=\"#ff0000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"101.30625\" x2=\"101.30625\" y1=\"19.2375\" y2=\"119.2375\"><\/line> <line fill=\"none\" id=\"svg_6\" stroke=\"#0000ff\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"164.30625\" x2=\"100.30625\" y1=\"118.2375\" y2=\"18.2375\"><\/line> <line fill=\"none\" id=\"svg_7\" stroke=\"#0000ff\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"26.30625\" x2=\"102.30625\" y1=\"118.2375\" y2=\"19.2375\"><\/line> <line fill=\"none\" id=\"svg_8\" stroke=\"#0000ff\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"245.30625\" x2=\"100.30625\" y1=\"118.2375\" y2=\"18.2375\"><\/line> <ellipse cx=\"101.30625\" cy=\"21.2375\" fill=\"#ff0000\" id=\"svg_9\" rx=\"3\" ry=\"3\" stroke=\"#000\" stroke-width=\"1.5\"><\/ellipse> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#ff0000\" stroke-width=\"0\" text-anchor=\"start\" x=\"92.80625\" xml:space=\"preserve\" y=\"144.2375\">H<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"15.80625\" xml:space=\"preserve\" y=\"145.2375\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"162.80625\" xml:space=\"preserve\" y=\"143.2375\">N<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"238.80625\" xml:space=\"preserve\" y=\"145.2375\">K<\/text> <rect fill=\"none\" fill-opacity=\"null\" height=\"11\" id=\"svg_14\" stroke=\"#ff0000\" stroke-width=\"1.5\" width=\"11\" x=\"100.80625\" y=\"108.2375\"><\/rect> <\/g> <\/svg><\/span><\/p>Cho \u0111\u01b0\u1eddng th\u1eb3ng d và \u0111i\u1ec3m A không thu\u1ed9c d. Các kh\u1eb3ng \u0111\u1ecbnh \u0111úng là<\/p>B.<\/strong> Có vô s\u1ed1 \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng d<\/span><\/p>C.<\/strong> Có duy nh\u1ea5t m\u1ed9t \u0111\u01b0\u1eddng vuông góc k\u1ebb t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng d<\/span><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"131","test":"1","date":"2022-06-03 03:19:44","option_type":"txt","len":3},{"id":"8664","post_id":"5835","mon_id":"1158532","chapter_id":"1158662","question":"M\u1ed9t xe ô tô \u0111ang \u1edf v\u1ecb trí O. \u0110o kho\u1ea3ng cách t\u1eeb O \u0111\u1ebfn cao t\u1ed1c MP trên s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c 3,2 cm. Cho bi\u1ebft kho\u1ea3ng cách này trên th\u1ef1c t\u1ebf là bao nhiêu mét, bi\u1ebft s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c v\u1ebd v\u1edbi t\u1ec9 l\u1ec7 b\u1ea3n \u0111\u1ed3 là 1 : 10 000?<\/p><svg height=\"220\" width=\"300\"> <g><title><\/title><rect fill=\"#d4ffaa\" height=\"222\" id=\"canvas_background\" width=\"302\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_6\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><rect fill=\"#000000\" height=\"197.22551\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"54.40548\" x=\"8.0125\" y=\"10.02372\"><\/rect> <line fill=\"none\" id=\"svg_2\" stroke=\"#ffffff\" stroke-dasharray=\"5,5\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.9\" x1=\"33.18519\" x2=\"33.17504\" y1=\"11.63372\" y2=\"206.44423\"><\/line> <rect fill=\"#000000\" height=\"12.07503\" id=\"svg_3\" stroke=\"#000000\" stroke-width=\"1.9\" width=\"168.9006\" x=\"61.60597\" y=\"74.42389\"><\/rect> <rect fill=\"#000000\" height=\"15.16423\" id=\"svg_4\" stroke=\"#000000\" stroke-width=\"1.9\" transform=\"matrix(0.7793076646344661,0.2261930607292595,-0.22816558728831748,0.772570430135442,24.253265254536203,-38.51742749364327) \" width=\"215.95866\" x=\"66.73605\" y=\"61.88431\"><\/rect> <rect fill=\"#000000\" height=\"14.1459\" id=\"svg_5\" stroke=\"#000000\" stroke-width=\"1.9\" transform=\"matrix(0.6723105818879566,-0.4514513427581689,0.4553882440974136,0.6664983536090534,-49.65267989882945,106.99810272592228) \" width=\"252.43497\" x=\"47.83976\" y=\"158.94814\"><\/rect> <path d=\"m241.79768,83.63249c-1.65133,-1.93755 -4.74778,0.16216 -5.12117,-3.37455c-0.71873,-3.1428 1.47694,-5.59816 2.938,-7.50118c2.5561,-1.77446 5.50345,-1.98903 8.26774,-2.80215c3.31251,-0.66986 6.76139,-1.24239 9.61693,-3.9013c3.2524,-2.83523 6.87477,-5.19478 10.79303,-5.15298c5.3987,-0.26071 10.98438,-0.00813 15.9758,3.20381c3.13755,1.97302 6.50853,2.97578 9.85702,3.94095c2.84906,0.52176 2.1865,4.8033 3.13411,7.44285c0.72338,3.03103 -0.84038,6.04804 -3.12931,6.14441c-2.42013,0.7665 -5.25253,0.84194 -6.942,3.78535c-1.73064,2.66954 -4.83825,2.57739 -6.60062,0.02716c-0.72863,-0.6304 -1.21509,-2.15665 -2.18537,-1.8932c-9.04741,0.06831 -18.09948,-0.18 -27.14294,0.22447c-2.36312,-0.26215 -3.34467,3.82411 -5.85832,3.54008c-1.28703,0.05563 -2.50582,-2.84037 -3.60291,-3.68373l0,0l0.00001,0.00001z\" fill=\"#ff0000\" id=\"svg_7\" stroke=\"#fff\" stroke-width=\"1.5\"><\/path> <line fill=\"none\" id=\"svg_9\" stroke=\"#fff\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-width=\"1.5\" x1=\"63.23002\" x2=\"224.82242\" y1=\"30.95378\" y2=\"79.2539\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_10\" stroke=\"#fff\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"64.04203\" x2=\"227.25848\" y1=\"192.7592\" y2=\"80.8639\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_11\" stroke=\"#fff\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"62.41799\" x2=\"226.44646\" y1=\"80.8639\" y2=\"80.67272\"><\/line> <ellipse cx=\"223.19837\" cy=\"81.26641\" fill=\"#ffff00\" id=\"svg_12\" rx=\"3.24809\" ry=\"3.22001\" stroke=\"#000000\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"61.60596\" cy=\"81.26641\" fill=\"#ffff00\" id=\"svg_13\" rx=\"3.24809\" ry=\"3.22001\" stroke=\"#000000\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"61.60596\" cy=\"30.55127\" fill=\"#ffff00\" id=\"svg_14\" rx=\"3.24809\" ry=\"3.22001\" stroke=\"#000000\" stroke-width=\"1.5\"><\/ellipse> <ellipse cx=\"61.60596\" cy=\"193.9667\" fill=\"#ffff00\" id=\"svg_15\" rx=\"3.24809\" ry=\"3.22001\" stroke=\"#000000\" stroke-width=\"1.5\"><\/ellipse> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_16\" stroke=\"#000000\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8120221495628357,0,0,0.8050020933151245,3.009995473540812,0.9775083295317586) \" x=\"89.16055\" xml:space=\"preserve\" y=\"27.2375\">M<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_17\" stroke=\"#000000\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8120221495628357,0,0,0.8050020933151245,3.009995473540812,0.9775083295317586) \" x=\"76.77159\" xml:space=\"preserve\" y=\"87.27489\">N<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_18\" stroke=\"#000000\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8120221495628357,0,0,0.8050020933151245,3.009995473540812,0.9775083295317586) \" x=\"74.16055\" xml:space=\"preserve\" y=\"267.2375\">P<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_19\" stroke=\"#000000\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8120221495628357,0,0,0.8050020933151245,3.009995473540812,0.9775083295317586) \" x=\"266.16055\" xml:space=\"preserve\" y=\"80.2375\">O<\/text> <rect fill=\"#fff\" height=\"12\" id=\"svg_8\" stroke=\"#000\" stroke-width=\"1.5\" width=\"12\" x=\"63.0125\" y=\"86.2375\"><\/rect> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> 320 m","B.<\/strong> 32 m","C.<\/strong> 310 m","D.<\/strong> 32 000 m"],"correct":"1","level":"3","hint":"","answer":"Kho\u1ea3ng cách t\u1eeb O \u0111\u1ebfn cao t\u1ed1c MP trên th\u1ef1c t\u1ebf là:<\/p>3,2 . 10 000 = 32 000 cm = 320 m<\/p>\u0110áp án \u0111úng là A.<\/strong> 320 m<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-04 02:08:29","option_type":"txt","len":1},{"id":"8667","post_id":"5835","mon_id":"1158532","chapter_id":"1158662","question":"Quan sát hình v\u1ebd và cho bi\u1ebft các \u0111\u01b0\u1eddng vuông góc và \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb \u0111i\u1ec3m M \u0111\u1ebfn \u0111\u01b0\u1eddng th\u1eb3ng b là <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/><\/p> <svg height=\"230\" width=\"300\"> <g><title><\/title><rect fill=\"#fff\" height=\"232\" id=\"canvas_background\" width=\"302\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_13\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><g id=\"svg_18\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"7.0125\" x2=\"289.0125\" y1=\"84\" y2=\"84.2375\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"42.0125\" x2=\"42.0125\" y1=\"13.2375\" y2=\"197.2375\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"143.0125\" x2=\"43.0125\" y1=\"83.2375\" y2=\"14.2375\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"195.0125\" x2=\"12.0125\" y1=\"25.2375\" y2=\"232.2375\"><\/line> <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=\"17.0125\" xml:space=\"preserve\" y=\"23.2375\">M<\/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=\"21.0125\" xml:space=\"preserve\" y=\"108.2375\">N<\/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=\"41.0125\" xml:space=\"preserve\" y=\"224.2375\">P<\/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=\"140.0125\" xml:space=\"preserve\" y=\"110.2375\">O<\/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=\"174.0125\" xml:space=\"preserve\" y=\"28.2375\">a<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"270.0125\" xml:space=\"preserve\" y=\"75.2375\">b<\/text> <rect fill=\"none\" fill-opacity=\"null\" height=\"13\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"13\" x=\"42.0125\" y=\"70.2375\"><\/rect> <rect fill=\"none\" fill-opacity=\"null\" height=\"15\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" transform=\"rotate(-48.6522102355957 141.5124969482422,73.73750305175781) \" width=\"15\" x=\"134.0125\" y=\"66.2375\"><\/rect> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.0125\" xml:space=\"preserve\" y=\"64.2375\">3<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"14.0125\" xml:space=\"preserve\" y=\"152.2375\">4,5<\/text> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"100.0125\" xml:space=\"preserve\" y=\"47.2375\">5<\/text> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> MO là \u0111\u01b0\u1eddng vuông góc, MN là \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb M \u0111\u1ebfn b","B.<\/strong> MN là \u0111\u01b0\u1eddng vuông góc, MP là \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb M \u0111\u1ebfn b","C.<\/strong> MP là \u0111\u01b0\u1eddng vuông góc, MO là \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb M \u0111\u1ebfn b","D.<\/strong> MN là \u0111\u01b0\u1eddng vuông góc, MO là \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb M \u0111\u1ebfn b"],"correct":"4","level":"3","hint":"","answer":"T\u1eeb hình v\u1ebd, ta có:<\/p>+ MN vuông góc v\u1edbi b t\u1ea1i N nên MN là \u0111\u01b0\u1eddng vuông góc k\u1ebb t\u1eeb M \u0111\u1ebfn b<\/span>;<\/p>+ MO c\u1eaft b t\u1ea1i O (O khác N) nên MO là \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb M \u0111\u1ebfn b<\/span><\/p><svg height=\"230\" width=\"300\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"232\" id=\"canvas_background\" width=\"302\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_13\" 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=\"7.0125\" x2=\"289.0125\" y1=\"84\" y2=\"84.2375\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"42.0125\" x2=\"42.0125\" y1=\"13.2375\" y2=\"197.2375\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#ff0000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"143.0125\" 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stroke-width=\"0\" text-anchor=\"start\" x=\"41.0125\" xml:space=\"preserve\" y=\"224.2375\">P<\/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=\"140.0125\" xml:space=\"preserve\" y=\"110.2375\">O<\/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=\"174.0125\" xml:space=\"preserve\" y=\"28.2375\">a<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"270.0125\" xml:space=\"preserve\" y=\"75.2375\">b<\/text> <rect fill=\"none\" fill-opacity=\"null\" height=\"13\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"13\" x=\"42.0125\" y=\"70.2375\"><\/rect> <rect fill=\"none\" fill-opacity=\"null\" height=\"15\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" transform=\"rotate(-48.6522102355957 141.5124969482422,73.73750305175781) \" width=\"15\" x=\"134.0125\" y=\"66.2375\"><\/rect> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"25.0125\" xml:space=\"preserve\" y=\"64.2375\">3<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"14.0125\" xml:space=\"preserve\" y=\"152.2375\">4,5<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"100.0125\" xml:space=\"preserve\" y=\"47.2375\">5<\/text> <line fill=\"none\" id=\"svg_14\" stroke=\"#ff0000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"42.0125\" x2=\"42.0125\" y1=\"13.2375\" y2=\"81\"><\/line> <\/g> <\/svg><\/span><\/p>\u0110áp án \u0111úng là  D.<\/strong> MN là \u0111\u01b0\u1eddng vuông góc, MO là \u0111\u01b0\u1eddng xiên k\u1ebb t\u1eeb M \u0111\u1ebfn b<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-04 02:45:56","option_type":"txt","len":3}]}