Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
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HomeToán lớp 3 - Tập 1CHỦ ĐỀ 3 - LÀM QUEN VỚI HÌNH PHẲNG, HÌNH KHỐIBài 21: Khối lập phương, khối hộp chữ nhậtBài tập trung bình
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K\u1ec3 tên các \u0111\u1ec9nh c\u1ee7a kh\u1ed1i h\u1ed9p ch\u1eef nh\u1eadt:<\/p><p><span class=\"svgedit\"><svg height=\"220\" width=\"298\"> <g><title><\/title><rect fill=\"#fff\" height=\"222\" id=\"canvas_background\" width=\"300\" 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><rect fill=\"#fff\" height=\"145\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"2\" width=\"194.27118\" x=\"34.95455\" y=\"59.05682\"><\/rect> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"35.39946\" x2=\"87.8698\" y1=\"58.61287\" y2=\"21.0027\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"227.32743\" x2=\"278.54777\" y1=\"58.61287\" y2=\"21.0027\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_8\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"88.09659\" x2=\"278.0966\" y1=\"20.73579\" y2=\"20.73579\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"230.45243\" x2=\"279.79777\" y1=\"202.98787\" y2=\"166.0027\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"277.47159\" x2=\"277.47159\" y1=\"21.9858\" y2=\"166.36079\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_14\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"89.34659\" x2=\"88.09659\" y1=\"23.23579\" y2=\"166.3608\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_15\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"37.27446\" x2=\"88.4948\" y1=\"202.98787\" y2=\"165.3777\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_16\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"89.34659\" x2=\"279.3466\" y1=\"165.73579\" y2=\"165.73579\"><\/line> <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\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"88.39238\" xml:space=\"preserve\" y=\"14.96767\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_18\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"332.92947\" xml:space=\"preserve\" y=\"14.16853\">B<\/text> <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\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"280.98531\" xml:space=\"preserve\" y=\"80.49721\">C<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_20\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"6.88001\" xml:space=\"preserve\" y=\"77.30065\">D<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"72.40956\" xml:space=\"preserve\" y=\"204.36404\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"344.11744\" xml:space=\"preserve\" y=\"212.35545\">N<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_23\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"278.58789\" xml:space=\"preserve\" y=\"270.69273\">P<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"5.28173\" xml:space=\"preserve\" y=\"261.10304\">Q<\/text> <\/g> <\/svg><\/span><\/p>","options":["A, B, C, D","M, N, P, Q","A, B, D, C, P, Q","A, B, C, D, M, N, P, Q"],"correct":"4","level":"2","hint":"","answer":"<p>Kh\u1ed1i h\u1ed9p ch\u1eef nh\u1eadt có 8 \u0111\u1ec9nh là: A, B, C, D, M, N, P, Q.<\/p><p>\u0110áp án \u0111úng là:<span style=\"color:#16a085;\"> A, B, C, D, M, N, P, Q<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"129","test":"1","date":"2022-08-21 09:43:10","option_type":"txt","len":2},{"id":"2542","post_id":"6139","mon_id":"1158530","chapter_id":"1158594","question":"<p>Cho hình v\u1ebd sau, k\u1ec3 tên các c\u1ea1nh kh\u1ed1i h\u1ed9p ch\u1eef nh\u1eadt.<\/p><p><span class=\"svgedit\"><svg height=\"181\" width=\"249\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"183\" id=\"canvas_background\" width=\"251\" 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=\"181.00001\" id=\"svg_1\" stroke=\"null\" width=\"248.99999\" x=\"0\" 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y=\"-0.5\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["AD, BC, MQ, NP","AB, DC, MN, QP","AD, BC, AM, DQ, CP, BN","AD, BC, MQ, NP, AB, DC, MN, QP, AM, DQ, CP, BN"],"correct":"4","level":"2","hint":"","answer":"<p>12 c\u1ea1nh c\u1ee7a kh\u1ed1i h\u1ed9p ch\u1eef nh\u1eadt trên là: AD, BC, MQ, NP, AB, DC, MN, QP, AM, DQ, CP, BN<\/p><p>\u0110áp án \u0111úng là: <span style=\"color:#1abc9c;\">AD, BC, MQ, NP, AB, DC, MN, QP, AM, DQ, CP, BN<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"129","test":"1","date":"2022-08-21 10:05:46","option_type":"txt","len":2},{"id":"2543","post_id":"6139","mon_id":"1158530","chapter_id":"1158594","question":"<p>K\u1ec3 tên t\u1ea5t c\u1ea3 các m\u1eb7t kh\u1ed1i h\u1ed9p ch\u1eef nh\u1eadt sau:<\/p><p><span class=\"svgedit\"><svg height=\"220\" width=\"298\"> <g><title><\/title><rect fill=\"#fff\" height=\"222\" id=\"canvas_background\" width=\"300\" 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><rect fill=\"#fff\" height=\"145\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"2\" width=\"194.27118\" x=\"34.95455\" y=\"59.05682\"><\/rect> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"35.39946\" x2=\"87.8698\" y1=\"58.61287\" y2=\"21.0027\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"227.32743\" x2=\"278.54777\" y1=\"58.61287\" y2=\"21.0027\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_8\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"88.09659\" x2=\"278.0966\" y1=\"20.73579\" y2=\"20.73579\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"230.45243\" x2=\"279.79777\" y1=\"202.98787\" y2=\"166.0027\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"277.47159\" x2=\"277.47159\" y1=\"21.9858\" y2=\"166.36079\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_14\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"89.34659\" x2=\"88.09659\" y1=\"23.23579\" y2=\"166.3608\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_15\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"37.27446\" x2=\"88.4948\" y1=\"202.98787\" y2=\"165.3777\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_16\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" x1=\"89.34659\" x2=\"279.3466\" y1=\"165.73579\" y2=\"165.73579\"><\/line> <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\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"88.39238\" xml:space=\"preserve\" y=\"14.96767\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_18\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"332.92947\" xml:space=\"preserve\" y=\"14.16853\">B<\/text> <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\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"280.98531\" xml:space=\"preserve\" y=\"80.49721\">C<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_20\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"6.88001\" xml:space=\"preserve\" y=\"77.30065\">D<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"72.40956\" xml:space=\"preserve\" y=\"204.36404\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"344.11744\" xml:space=\"preserve\" y=\"212.35545\">N<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_23\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"278.58789\" xml:space=\"preserve\" y=\"270.69273\">P<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7820899486541748,0,0,0.7820899486541748,13.219831006052118,5.7434415839934445) \" x=\"5.28173\" xml:space=\"preserve\" y=\"261.10304\">Q<\/text> <\/g> <\/svg><\/span><\/p>","options":["ABCD và MNPQ","DCPQ và ABMN","ADQM và BCPN","C\u1ea3 3 \u0111áp án trên"],"correct":"4","level":"2","hint":"","answer":"<p>Các m\u1eb7t kh\u1ed1i h\u1ed9p ch\u1eef nh\u1eadt trên g\u1ed3m: ABCD, MNPQ, DCPQ, ABMN, ADQM, BCPN.<\/p><p>\u0110áp án: <span style=\"color:#1abc9c;\">C<\/span><span style=\"color:#16a085;\">\u1ea3 3 \u0111áp án trên<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"129","test":"1","date":"2022-08-21 11:01:41","option_type":"txt","len":2}]}