Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
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{"common":{"save":0,"post_id":"4666","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7269","post_id":"4666","mon_id":"1158113","chapter_id":"1158164","question":"<p>Cho I là trung \u0111i\u1ec3m c\u1ee7a AB, bi\u1ebft IA = 5 cm. Tính \u0111\u1ed9 dài \u0111o\u1ea1n th\u1eb3ng IB.<\/p><p><span class=\"svgedit\"><svg height=\"60\" width=\"370\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"62\" id=\"canvas_background\" width=\"372\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_5\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><image height=\"33\" id=\"svg_1\" width=\"362\" x=\"0\" xlink:href=\"data:image\/png;base64,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\" y=\"-2.5\"><\/image> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"8.9\" xml:space=\"preserve\" y=\"45\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"177.9\" xml:space=\"preserve\" y=\"44\">I<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"349.9\" xml:space=\"preserve\" y=\"46\">B<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"64.9\" xml:space=\"preserve\" y=\"36.85\">5 cm<\/text> <\/g> <\/svg><\/span><\/p>","options":["IB = 4 cm","IB = 5 cm","IB = 6 cm"],"correct":"2","level":"1","hint":"<p>IB = IA<\/p>","answer":"<p>Vì I là trung \u0111i\u1ec3m c\u1ee7a AB nên IB = IA = 5 cm<\/p><p>V\u1eady <span style=\"color:#16a085;\"><strong>IB = 5 cm<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"3","date":"2021-09-06 02:41:03","option_type":"txt","len":0},{"id":"7271","post_id":"4666","mon_id":"1158113","chapter_id":"1158164","question":"<p>Cho I là trung \u0111i\u1ec3m AB, bi\u1ebft IB = 7 cm. Tính \u0111\u1ed9 dài \u0111o\u1ea1n th\u1eb3ng AB.<\/p><p><span class=\"svgedit\"><svg height=\"60\" width=\"370\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"62\" id=\"canvas_background\" width=\"372\" 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><image height=\"33\" id=\"svg_1\" width=\"362\" x=\"1\" xlink:href=\"data:image\/png;base64,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\" y=\"5.5\"><\/image> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"10.9\" xml:space=\"preserve\" y=\"55\">B<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"183.9\" xml:space=\"preserve\" y=\"53\">I<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"344.9\" xml:space=\"preserve\" y=\"54\">A<\/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=\"75.9\" xml:space=\"preserve\" y=\"44\">7 cm<\/text> <\/g> <\/svg><\/span><\/p>","options":["AB = 12 cm","AB = 7 cm","AB = 14 cm"],"correct":"3","level":"1","hint":"<p>AB = 2 . IB<\/p>","answer":"<p>Vì I là trung \u0111i\u1ec3m AB nên IA = IB = <span class=\"math-tex\">$\\dfrac{AB}{2}$<\/span><\/p><p>Suy ra AB = 2 . IB<\/p><p>Thay s\u1ed1: AB = 2 . 7<\/p><p> AB = 14 (cm)<\/p><p>V\u1eady<span style=\"color:#16a085;\"><strong> AB = 14 cm<\/strong><\/span><\/p>","type":"choose","extra_type":"cloud","time":"0","user_id":"131","test":"3","date":"2021-09-06 02:45:25","option_type":"txt","len":0},{"id":"7272","post_id":"4666","mon_id":"1158113","chapter_id":"1158164","question":"<p><strong>\u0110i\u1ec1n d\u1ea5u < ; > ; = thích h\u1ee3p vào ch\u1ed7 tr\u1ed1ng<\/strong><\/p><p>Cho I là trung \u0111i\u1ec3m MN. Hãy so sánh \u0111\u1ed9 dài hai \u0111o\u1ea1n th\u1eb3ng IM và IN.<\/p><p><span class=\"svgedit\"><svg height=\"60\" width=\"370\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"62\" id=\"canvas_background\" width=\"372\" 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><image height=\"33\" id=\"svg_1\" width=\"362\" x=\"0\" xlink:href=\"data:image\/png;base64,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\" y=\"-2.5\"><\/image> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"11.9\" xml:space=\"preserve\" y=\"42\">M<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"182.9\" xml:space=\"preserve\" y=\"42\">I<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"342.9\" xml:space=\"preserve\" y=\"40\">N<\/text> <\/g> <\/svg><\/span><\/p><p>Ta có: <strong>IM <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> IN<\/strong><\/p>","options":"","correct":["[\"=\"]"],"level":"1","hint":"","answer":"<p>Vì I là trung \u0111i\u1ec3m MN nên <strong>IM = IN<\/strong>.<\/p><p>V\u1eady ta c\u1ea7n \u0111i\u1ec1n là d\u1ea5u <span style=\"color:#16a085;\"><strong>=<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"3","date":"2021-09-06 02:48:46"}]}