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Home Toán lớp 7 - Sách kết nối tri thức Đề kiểm tra

Toán lớp 7 - Sách kết nối tri thức - Đề kiểm tra 15 phút - Toán lớp 7 - Sách kết nối tri thức - Tháng 5 - Số 1

{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"10393","test_id":"696","question":"Cho ΔABC có AM là \u0111\u01b0\u1eddng trung tuy\u1ebfn và G là tr\u1ecdng tâm c\u1ee7a tam giác. Kh\u1eb3ng \u0111\u1ecbnh nào sau \u0111ây là \u0111úng<\/strong>?<\/p>","options":["A. $AM=\\dfrac{2}{3}AG$<\/span>.<\/b><\/p>","B. $AG=\\dfrac{2}{3}AM$<\/span>.<\/b><\/p>","C. $AM=\\dfrac{1}{3}AG$<\/span>.<\/b><\/p>","D. $AG=\\dfrac{1}{3}AM$<\/span>.<\/b>"],"correct":"2","answer":"Ch\u1ecdn B. $AG=\\dfrac{2}{3}AM$<\/span><\/b>.<\/b><\/span><\/p>Tr\u1ecdng tâm c\u1ee7a tam giác cách m\u1ed7i \u0111\u1ec9nh m\u1ed9t kho\u1ea3ng b\u1eb1ng $\\dfrac{2}{3}$<\/span> \u0111\u1ed9 dài \u0111\u01b0\u1eddng trung tuy\u1ebfn \u0111i qua \u0111\u1ec9nh \u1ea5y.<\/p><svg height=\"160\" width=\"290\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"162\" id=\"canvas_background\" width=\"292\" 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_27\"> <g id=\"svg_18\"> <g id=\"svg_6\"> <path d=\"m70.85499,28.73887l194,99l-243,-2z\" 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=\"70.99999\" x2=\"140.99999\" y1=\"29.85\" y2=\"125.84999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"22\" x2=\"168.99998\" y1=\"124.84999\" y2=\"77.84999\"><\/line> <\/g> <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=\"74.99999\" x2=\"79.99999\" y1=\"121.84999\" y2=\"130.84999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_8\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"179.99999\" x2=\"187.99999\" y1=\"121.84999\" y2=\"130.84999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_9\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"115\" x2=\"123\" y1=\"56.84999\" y2=\"48.85\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"119\" x2=\"127\" y1=\"58.84999\" y2=\"50.85\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"183.99999\" x2=\"193.99999\" y1=\"94.84999\" y2=\"82.84999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_12\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"187.99999\" x2=\"197.99999\" y1=\"96.84999\" y2=\"84.84999\"><\/line> <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=\"63.99999\" xml:space=\"preserve\" y=\"23.85\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"112.99999\" xml:space=\"preserve\" y=\"86.84999\">G<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"130.99999\" xml:space=\"preserve\" y=\"149.84999\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"2.99999\" xml:space=\"preserve\" y=\"137.84999\">B<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"268.99999\" xml:space=\"preserve\" y=\"140.84999\">C<\/text> <\/g> <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=\"168.99999\" xml:space=\"preserve\" y=\"72.85\">N<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_20\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"262.99999\" x2=\"44.99999\" y1=\"125.84999\" y2=\"79.84999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_21\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"48.99999\" x2=\"60.99999\" y1=\"59.85\" y2=\"61.85\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_22\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"50.99999\" x2=\"62.99999\" y1=\"55.85\" y2=\"57.85\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_23\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"52.99999\" x2=\"64.99999\" y1=\"52.85\" y2=\"54.85\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_24\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"28.99999\" x2=\"38.99999\" y1=\"97.84999\" y2=\"99.84999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_25\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"29.99999\" x2=\"39.99999\" y1=\"94.84999\" y2=\"96.84999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_26\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"27.99999\" x2=\"37.99999\" y1=\"101.84999\" y2=\"103.84999\"><\/line> <\/g> <\/g> <\/svg><\/span><\/p>Vì ΔABC có AM là \u0111\u01b0\u1eddng trung tuy\u1ebfn và G là tr\u1ecdng tâm c\u1ee7a tam giác nên $AG=\\dfrac{2}{3}AM$<\/span><\/b>.<\/b><\/p>","type":"choose","user_id":"126","test":"3","date":"2025-08-04 08:35:04"},{"id":"10394","test_id":"696","question":"\u0110i\u1ec3m cách \u0111\u1ec1u ba c\u1ea1nh c\u1ee7a tam giác là giao \u0111i\u1ec3m c\u1ee7a:<\/p>","options":["A.<\/strong> ba \u0111\u01b0\u1eddng trung tuy\u1ebfn.","B.<\/strong> ba \u0111\u01b0\u1eddng cao.","C.<\/strong> ba \u0111\u01b0\u1eddng phân giác.","D.<\/strong> ba \u0111\u01b0\u1eddng trung tr\u1ef1c."],"correct":"3","answer":"Ch\u1ecdn C.<\/strong> ba \u0111\u01b0\u1eddng phân giác.<\/span><\/p>\u0110i\u1ec3m cách \u0111\u1ec1u ba c\u1ea1nh c\u1ee7a tam giác là giao \u0111i\u1ec3m c\u1ee7a ba \u0111\u01b0\u1eddng phân giác c\u1ee7a tam giác \u0111ó.<\/p>","type":"choose","user_id":"126","test":"1","date":"2025-08-04 08:36:11"}]}

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