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HomeToán lớp 3 - Tập 1CHỦ ĐỀ 3 - LÀM QUEN VỚI HÌNH PHẲNG, HÌNH KHỐIBài 19: Hình tam giác, hình tứ giác. Hình chữ nhật, hình vuôngBài tập nâng cao
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y=\"0\"><\/image> <\/g> <\/svg><\/span><\/p><p><span style=\"color:#2980b9;\">H&igrave;nh tr&ecirc;n c&oacute;&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt; h&igrave;nh tam gi&aacute;c,&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt; h&igrave;nh t\u1ee9 gi&aacute;c.<\/span><\/p>","options":"","correct":["[\"10\",\"4\"]"],"level":"3","hint":"","answer":"<p>H&igrave;nh tr&ecirc;n c&oacute;:<\/p><p>- 10 h&igrave;nh tam gi&aacute;c: AHB, AIH, AIE, CHI, CEI, ABC, AHE, AHC, EAC, CHE.<\/p><p>- 4 h&igrave;nh t\u1ee9 gi&aacute;c: ABHE, AHCE, ABCE, AIHB<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;:&nbsp;H&igrave;nh b&ecirc;n c&oacute;&nbsp;<span style=\"color:#16a085;\"><strong>10<\/strong><\/span> h&igrave;nh tam gi&aacute;c, <font color=\"#1abc9c\">4<\/font><span style=\"color:#16a085;\"><strong>&nbsp;<\/strong><\/span>h&igrave;nh t\u1ee9 gi&aacute;c.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"129","test":"1","date":"2022-08-14 16:10:54"},{"id":"2402","post_id":"6103","mon_id":"1158530","chapter_id":"1158594","question":"<p>Ch\u1ecdn m&ocirc; t\u1ea3 \u0111&uacute;ng v\u1ec1 h&igrave;nh v\u1ebd sau:<\/p><p><span class=\"svgedit\"><svg height=\"261\" width=\"263\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"263\" id=\"canvas_background\" width=\"265\" 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>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"217\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"2.5\" width=\"184\" x=\"30.95455\" y=\"30.43182\"><\/rect> <path d=\"m32.16055,246.17127l91.11268,-213.18309l91.11268,213.18309l-182.22536,0z\" fill=\"#fff\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"2\"><\/path> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"123.0173\" x2=\"124.42575\" y1=\"34.70936\" y2=\"246.68117\"><\/line> <\/g> <\/svg><\/span><\/p>","options":["<strong>a) <\/strong>c&oacute; 3 h&igrave;nh ch\u1eef nh\u1eadt, 5 h&igrave;nh tam gi&aacute;c","<strong>b) <\/strong>c&oacute; 2 h&igrave;nh ch\u1eef nh\u1eadt, 5 h&igrave;nh tam gi&aacute;c","<strong>c) <\/strong>c&oacute; 3 h&igrave;nh ch\u1eef nh\u1eadt, 4 h&igrave;nh tam gi&aacute;c","<strong>d) <\/strong>c&oacute; 3 h&igrave;nh ch\u1eef nh\u1eadt, 3 h&igrave;nh tam gi&aacute;c"],"correct":"1","level":"3","hint":"","answer":"<p style=\"padding:0px; text-align:left; text-indent:0px; -webkit-text-stroke-width:0px; margin-bottom:10px\"><font face=\"Quicksand, sans-serif\"><span style=\"font-size: 14px;\">\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;:&nbsp;<\/span><\/font><span style=\"color:#16a085;\"><strong>a) <\/strong>c&oacute; 3 h&igrave;nh ch\u1eef nh\u1eadt, 5 h&igrave;nh tam gi&aacute;c<\/span><font face=\"Quicksand, sans-serif\"><span style=\"font-size: 14px;\"><\/span><\/font><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"129","test":"1","date":"2022-08-14 16:21:21","option_type":"txt","len":3},{"id":"2403","post_id":"6103","mon_id":"1158530","chapter_id":"1158594","question":"<p>Trong h&igrave;nh sau c&oacute; bao nhi&ecirc;u h&igrave;nh tam gi&aacute;c, bao nhi&ecirc;u h&igrave;nh t\u1ee9 gi&aacute;c?<\/p><p><span class=\"svgedit\"><svg height=\"192\" width=\"286\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"194\" id=\"canvas_background\" width=\"288\" 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>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"163.6024\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"2\" width=\"263\" x=\"12.55695\" y=\"14.03423\"><\/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=\"10.95455\" x2=\"273.95455\" y1=\"107.97727\" y2=\"107.97727\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"13.55696\" x2=\"275.9666\" y1=\"15.37487\" y2=\"105.98932\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"2\" x1=\"13.35215\" x2=\"274.13526\" y1=\"109.17004\" y2=\"174.97727\"><\/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\" transform=\"matrix(0.7743589878082275,0,0,0.7743589878082275,52.37787366839984,16.41318011144176) \" x=\"208.79086\" xml:space=\"preserve\" y=\"57.55976\">1<\/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\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7743589878082275,0,0,0.7743589878082275,52.37787366839984,16.41318011144176) \" x=\"159.00231\" xml:space=\"preserve\" y=\"105.01447\">2<\/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\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7743589878082275,0,0,0.7743589878082275,52.37787366839984,16.41318011144176) \" x=\"114.65937\" xml:space=\"preserve\" y=\"147.02357\">3<\/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\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.7743589878082275,0,0,0.7743589878082275,52.37787366839984,16.41318011144176) \" x=\"59.4252\" xml:space=\"preserve\" y=\"186.69882\">4<\/text> <\/g> <\/svg><\/span><\/p>","options":["<strong>a)<\/strong> 5 h&igrave;nh tam gi&aacute;c v&agrave; 5 h&igrave;nh t\u1ee9 gi&aacute;c","<strong>b)<\/strong> 5 h&igrave;nh tam gi&aacute;c v&agrave; 4 h&igrave;nh t\u1ee9 gi&aacute;c","<strong>c) <\/strong>4 h&igrave;nh tam gi&aacute;c v&agrave; 4 h&igrave;nh t\u1ee9 gi&aacute;c","<strong>d)<\/strong> 4 h&igrave;nh tam gi&aacute;c v&agrave; 6 h&igrave;nh t\u1ee9 gi&aacute;c"],"correct":"4","level":"3","hint":"","answer":"<p style=\"padding:0px; text-align:left; text-indent:0px; -webkit-text-stroke-width:0px; margin-bottom:10px\">H&igrave;nh b&ecirc;n c&oacute;:<\/p><p style=\"padding:0px; text-align:left; text-indent:0px; -webkit-text-stroke-width:0px; margin-bottom:10px\"><span style=\"font-size:14px\"><span style=\"box-sizing:border-box\"><span style=\"font-family:Quicksand, sans-serif\"><span style=\"color:#333333\"><span style=\"font-style:normal\"><span style=\"font-variant-ligatures:normal\"><span style=\"font-variant-caps:normal\"><span style=\"font-weight:400\"><span style=\"letter-spacing:normal\"><span style=\"orphans:2\"><span style=\"text-transform:none\"><span style=\"white-space:normal\"><span style=\"widows:2\"><span style=\"word-spacing:0px\"><span style=\"background-color:#ffffff\"><span style=\"text-decoration-thickness:initial\"><span style=\"text-decoration-style:initial\"><span style=\"text-decoration-color:initial\">C&oacute; 4 h&igrave;nh tam gi&aacute;c: 1, 2, 3 , 4<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p><p style=\"padding:0px; text-align:left; text-indent:0px; -webkit-text-stroke-width:0px; margin-bottom:10px\"><span style=\"font-size:14px\"><span style=\"box-sizing:border-box\"><span style=\"font-family:Quicksand, sans-serif\"><span style=\"color:#333333\"><span style=\"font-style:normal\"><span style=\"font-variant-ligatures:normal\"><span style=\"font-variant-caps:normal\"><span style=\"font-weight:400\"><span style=\"letter-spacing:normal\"><span style=\"orphans:2\"><span style=\"text-transform:none\"><span style=\"white-space:normal\"><span style=\"widows:2\"><span style=\"word-spacing:0px\"><span style=\"background-color:#ffffff\"><span style=\"text-decoration-thickness:initial\"><span style=\"text-decoration-style:initial\"><span style=\"text-decoration-color:initial\">C&oacute; 6 h&igrave;nh t\u1ee9 gi&aacute;c: 1 + 2, 2 + 3, 3 + 4, 1 + 2 + 3, 2 + 3 + 4, 1 + 2 + 3 + 4<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p><p style=\"padding:0px; text-align:left; text-indent:0px; -webkit-text-stroke-width:0px; margin-bottom:10px\">\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;:<span style=\"color:#16a085;\"><strong> d)&nbsp;4 h&igrave;nh tam gi&aacute;c v&agrave; 6 h&igrave;nh t\u1ee9 gi&aacute;c<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"129","test":"1","date":"2022-08-14 16:24:12","option_type":"txt","len":3}]}
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