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{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"10028","test_id":"678","question":"<p data-end=\"380\" data-start=\"178\">Cho tam giác ABC có AB = AC. Trên tia phân giác c\u1ee7a góc A l\u1ea5y \u0111i\u1ec3m D n\u1eb1m trong tam giác sao cho DB = DC. Kh\u1eb3ng \u0111\u1ecbnh nào sau \u0111ây <strong>\u0111úng<\/strong>?<\/p><p data-end=\"380\" data-start=\"178\"><span class=\"svgedit\"><svg height=\"170\" width=\"160\"> <g>\\n<title><\/title>\\n<rect fill=\"#fff\" height=\"172\" id=\"canvas_background\" width=\"162\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_10\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>\\n<title><\/title>\\n<g id=\"svg_11\"> <path d=\"m17.83999,149.77463l60.5,-125.00001l60.5,125.00001l-121,0z\" fill=\"#fff\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"78\" x2=\"77.99999\" y1=\"24.45\" y2=\"117.45\"><\/line> <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=\"70.99999\" xml:space=\"preserve\" y=\"23.45\">A<\/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=\"1.99999\" xml:space=\"preserve\" y=\"162.45\">B<\/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=\"140.99999\" xml:space=\"preserve\" y=\"161.45\">C<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"39.99999\" x2=\"47.99999\" y1=\"87.45\" y2=\"97.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_7\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"107.99999\" x2=\"116.99999\" y1=\"98.45\" y2=\"87.45\"><\/line> <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\" transform=\"rotate(114.67335510253906 70.33124542236328,66.25) \" x=\"66.99999\" xml:space=\"preserve\" y=\"73.45\">)<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"rotate(66.32184600830078 88.3312454223633,61.25000000000001) \" x=\"84.99999\" xml:space=\"preserve\" y=\"68.45\">)<\/text> <line fill=\"none\" id=\"svg_13\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"77.99999\" x2=\"17.99999\" y1=\"116.45\" y2=\"149.45\"><\/line> <line fill=\"none\" id=\"svg_14\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"77.99999\" x2=\"138.99999\" y1=\"116.45\" y2=\"149.45\"><\/line> <ellipse cx=\"77.99999\" cy=\"116.95\" fill=\"#bf0000\" id=\"svg_12\" rx=\"2\" ry=\"2\" stroke=\"#000\" stroke-width=\"1.5\"><\/ellipse> <line fill=\"none\" id=\"svg_15\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"47.99999\" x2=\"54.99999\" y1=\"124.45\" y2=\"136.45\"><\/line> <line fill=\"none\" id=\"svg_16\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"51.99999\" x2=\"58.99999\" y1=\"122.45\" y2=\"134.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_17\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"103.99999\" x2=\"96.99999\" y1=\"123.45\" y2=\"133.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_18\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"107.99999\" x2=\"100.99999\" y1=\"125.45\" y2=\"135.45\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"79.99999\" xml:space=\"preserve\" y=\"114.45\">D<\/text> <\/g> <\/g> <\/svg><\/span><\/p>","options":["<strong>A.<\/strong> \u2206ABD = \u2206ACD.","<strong>B.<\/strong> \u2206ABD = \u2206ADC.","<strong>C.<\/strong> \u2206ABD = \u2206DAC.","<p data-end=\"380\" data-start=\"178\"><strong>D.<\/strong> \u2206ABD = \u2206DCB.<\/p>"],"correct":"1","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> \u2206ABD = \u2206ACD.<\/span><\/p><p>Xét \u2206ABD và \u2206ACD có:<\/p><p>AB = AC (gt)<\/p><p>DB = DC (gt)<\/p><p>AD là c\u1ea1nh chung<\/p><p>Suy ra \u2206ABD = \u2206ACD (c.c.c).<\/p><p>Các \u0111áp án B, C, D sai kí hi\u1ec7u b\u1eb1ng nhau c\u1ee7a hai tam giác (th\u1ee9 t\u1ef1 \u0111\u1ec9nh).<\/p>","type":"choose","user_id":"126","test":"3","date":"2025-08-03 11:45:06"},{"id":"10029","test_id":"678","question":"<p data-end=\"706\" data-start=\"511\">Cho ΔABC = ΔMNP và c\u1ea1nh CB = 7 cm. Khi \u0111ó:<\/p>","options":["<strong>A.<\/strong> MN = 7 cm.","<strong>B.<\/strong> NP = 7 cm.","<strong>C.<\/strong> AB = 7 cm.","<p data-end=\"706\" data-start=\"511\"><strong>D.<\/strong> PM = 7 cm.<\/p>"],"correct":"2","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> NP = 7 cm.<\/span><\/p><p>Vì ΔABC = ΔMNP nên NP = CB = 7 cm (hai c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng).<\/p><p>V\u1eady NP = 7 cm.<\/p>","type":"choose","user_id":"126","test":"3","date":"2025-08-03 11:46:30"}]}