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HomeLớp 2Toán lớp 2 - Sách Kết nối tri thứcBài 34: Ôn tập hình phẳngBài tập nâng cao
{"common":{"save":0,"post_id":"4259","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2567","post_id":"4259","mon_id":"11445","chapter_id":"11485","question":"<p>Huy&nbsp;d&ugrave;ng m\u1ed9t s\u1ee3i d&acirc;y th&eacute;p d&agrave;i 30cm \u0111\u1ec3 u\u1ed1n th&agrave;nh m\u1ed9t h&igrave;nh tam gi&aacute;c c&oacute; 2 c\u1ea1nh b\u1eb1ng nhau, m\u1ed7i c\u1ea1nh d&agrave;i 9cm. H\u1ecfi c\u1ea1nh c&ograve;n l\u1ea1i c\u1ee7a h&igrave;nh \u0111&oacute; d&agrave;i bao nhi&ecirc;u x\u0103ng-ti-m&eacute;t?<\/p>","options":["28cm","21cm","18cm","12cm"],"correct":"4","level":"3","hint":"<p>H&igrave;nh tam gi&aacute;c c&oacute; 3 c\u1ea1nh. Con h&atilde;y t&igrave;m t\u1ed5ng \u0111\u1ed9 d&agrave;i c\u1ee7a hai c\u1ea1nh b\u1eb1ng nhau, sau \u0111&oacute; t&igrave;m s\u1ed1 \u0111o c\u1ea1nh c&ograve;n l\u1ea1i nh&eacute;!<\/p>","answer":"<p><span class=\"svgedit\"><svg height=\"90\" width=\"255\"> <g> &lt;title&gt;&lt;\/title&gt; <rect fill=\"#fff\" height=\"92\" id=\"canvas_background\" width=\"257\" 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&gt; <path d=\"m21.9085,87.52987l99.5,-84l99.5,84l-199,0z\" fill=\"#fff\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"rotate(-39.69259262084961 66.93528747558594,36.90830612182617) matrix(0.9212762117385866,0,0,0.9330012202262881,4.072142063735697,4.896764216089473) \" x=\"42.22725\" xml:space=\"preserve\" y=\"42.50371\">9 cm<\/text> <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\" transform=\"rotate(40.95122146606445 174.93101501464844,35.8999557495117) matrix(0.9212762117385866,0,0,0.9330012202262881,4.072142063735697,4.896764216089473) \" x=\"159.45594\" xml:space=\"preserve\" y=\"41.4319\">9 cm<\/text> <\/g> <\/svg><\/span><\/p><p>T\u1ed5ng c\u1ee7a 2 c\u1ea1nh c&oacute; \u0111\u1ed9 d&agrave;i b\u1eb1ng nhau l&agrave;:&nbsp;<\/p><p>9 + 9 = 18 (cm)<\/p><p>C\u1ea1nh c&ograve;n l\u1ea1i d&agrave;i s\u1ed1 xen-ti-m&eacute;t l&agrave;:&nbsp;&nbsp;<\/p><p>30 - 18 = 12 (cm)<\/p><p>\u0110&aacute;p s\u1ed1: <span style=\"color:#3498db;\">12 cm&nbsp;<\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"125","test":"1","date":"2021-08-04 15:04:27","option_type":"txt","len":0},{"id":"2568","post_id":"4259","mon_id":"11445","chapter_id":"11485","question":"<p>H&igrave;nh v\u1ebd sau c&oacute; t\u1ea5t c\u1ea3 bao nhi&ecirc;u h&igrave;nh tam gi&aacute;c?<\/p><p><span class=\"svgedit\"><svg height=\"161\" width=\"186\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"163\" id=\"canvas_background\" width=\"188\" 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><image height=\"173.00001\" id=\"svg_1\" stroke=\"null\" width=\"203\" x=\"-2.5\" 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\" y=\"-9\"><\/image> <\/g> <\/svg><\/span><\/p><p>H&igrave;nh v\u1ebd tr&ecirc;n c&oacute;&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp;h&igrave;nh tam gi&aacute;c.<\/p>","options":"","correct":["[\"14\"]"],"level":"3","hint":"<p>Con h&atilde;y&nbsp;\u0111\u1ebfm h&igrave;nh tam gi&aacute;c \u0111\u01a1n v&agrave; h&igrave;nh tam gi&aacute;c gh&eacute;p nh&eacute;!<\/p>","answer":"<p>H&igrave;nh v\u1ebd tr&ecirc;n c&oacute; 14 h&igrave;nh tam gi&aacute;c l&agrave;:<\/p><p>- h&igrave;nh (1); h&igrave;nh (2); h&igrave;nh (3), h&igrave;nh (4), h&igrave;nh (5), h&igrave;nh (6), h&igrave;nh (7)<\/p><p>- h&igrave;nh (2,4), h&igrave;nh (3,6), h&igrave;nh (2,3), h&igrave;nh (4,6)<\/p><p>- h&igrave;nh (1,2,3), h&igrave;nh (3,6,7)<\/p><p>- h&igrave;nh (1,2,3,4,5,6,7)<\/p><p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v&agrave;o &ocirc; tr\u1ed1ng l&agrave;: <strong><span style=\"color:#3498db;\">14<\/span><\/strong><\/p>","type":"blank","extra_type":"","time":"0","user_id":"125","test":"3","date":"2021-08-04 15:15:32"},{"id":"2569","post_id":"4259","mon_id":"11445","chapter_id":"11485","question":"<p>T&igrave;m nh\u1eefng&nbsp;\u0111\u01b0\u1eddng g\u1ea5p kh&uacute;c \u0111\u1ed9 d&agrave;i 12cm?<\/p><p><span class=\"svgedit\"><svg height=\"196\" width=\"320\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"198\" id=\"canvas_background\" width=\"322\" 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><image height=\"192\" id=\"svg_1\" stroke=\"null\" width=\"334.99999\" x=\"-11\" 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8eN0cSSAM0crl5aW1t3dTUILJjExEQO3d+\/e5T77OBtki6urKz759evXSUiRUAhpEIlEKSkpGhoaERERJLTMrFu3DolVWVlJ31UBXTh27NjLL7\/80ksvvfHGG7DoozffoTBPM19dXY020MnJycPDg4RWEDSeUVFR+AxlZWUkpEgohDS0tbVVVFRYW1sv0+paqYSFhamrq1+8eJF8r5CIxWLMq6SkJC0tLSMjoxMnTvzxj388cODADfuADea5lJOcnAzbtW3bNvL9iuPm5rZ69Wo+n6+Ar8bkvvbaa+TLuxRk3jfffNPV1fXYY4+ZmJiQ6PKDmnPt2rX8\/Hyk18qbYZYgFApLSkrQt7\/99ts\/\/\/nPLSwsUIQhEKWlpZhsY2NjUE+ohtTrDnDy8Hqo2\/B6d3537O2BzwbLmZqaam5ujtJCoorB3e8aYBlQuKysrJbkcUCLgnnjdkJCgsK+HKm9vb2np8fOzk5PTw\/f3n\/\/\/R999NGzzz6bl5eHFgOSPTExIfVuiL6+vrS0NGgK80prEl1x8L92dXXV1tZGb6hog3j3u4bDhw\/39vbu2LFjga+fWUJgFjo6OrKzs318fFatWkWiioFEIrl69er+\/fuPHDkyOjpqb28PG4Xij38x27lcbn9\/v5+f36ZNm6RKw5kzZzAb4+LiZHKWYTrQBRiH3NxcNESLeh2BvHOXSwOq1ldffeXl5YV+FelIoisF\/o8aGhqw0J2dnUjxpb2bi+XALHz++efQZRwEtA85OTkwCLAPmpqa+ClEE9U4MjJSaqvFjJqtre0DDzywTHdYLhx8AMg6c87I29t75bNIVsiNNKBrbWlpQcJhsi1wjiEXz507h7qN4rOSq2Wmg6xCR4OJgaxSqDMO3d3d5eXlMAj79u1Dx56VlZWSkoI2wdTUFLNLLBZDJqTeQAm7cfToUYzazp07WdLeq6urX7t2rbm5ec2aNct30yfbkA9pGBoa+u677958800kTX19PXypjo7OjXciI5nA7DNVGM4vv\/wSrhWWQVb9Kv6\/ampqVVVVMA5oK2ReA1cGHPmKiorVq1ffe++9Dg4OoaGh\/v7+Y2NjZ8+ePX\/+fE1NDYKY9lKPBp\/PP3nyZEhISExMjAzPMkwHWoZ8g7qhMwoKCiLRux05kAZ0epmZmZ999hkSDn4B7vTSpUtlZWWoRcitkZERGArEZzg91KXjx4\/DZWzfvt3CwoJEZYG+vj4+RmpqamBgoCKccRAIBAcPHvz000\/Hx8fRykEgMEw2NjYQCKgkmnZM+D179qACk1+YxuDgIFoJjOZDDz1kYGBAoixAT0+vtbX1ypUrMDu38Zxh5DB2rbe3Fwdndq6yEzmQhuHh4by8POTZE088sXfvXrSgsHbIMAgE4qhFqD+YcjMqTFdXF3pdpCaKzwIbkGWCqY2oorA2jo6Oc30YaBz2EXsh790ssv\/IkSMXLly4evXqwMCAiYkJI82amprYfQglHMSGDRukWoa0tDSMbEREBNuKM0YNQ5ORkYFB9PX1JdEFA7tx+PBhVDj4XxQtfItqgfYKfw0VjmzEMuRAGpgccnZ23rp1K5IMA7N582aYc7SyGKq1a9fGxcXdaC4YMMfOnDnT3t6+a9cuWZ1lmA6UC9YGdtrFxWX2I2TQV+PTJicnQx3QouNbJA2+QJ3BNMMvMnohq2v7iwXWwN7ePjg4GKJw6tSpc+fOYRpYWVlhHDEuHh4eAQEBUu98RVH98MMPnZycdu\/ezcIJo6ur29jY2NTUhG5osQ+5n5iYQDsMq4u9g4Ng3q\/T0NDQ39+PyocRx7\/oWaTKpayQA2lA8UH\/iXYdM8Tc3Bz\/4iAyi2fhF+DS8QWCZOsprl+\/\/t1337m6um7cuPFOXpS6VGDIMbcLCwvx77p162ZMjNra2k8++QQOCHMGeYO+qa6urrOzE1mIOoPmHKkD+80sDWA5cN0tLS0YJuwLRBxTCHsHL1BdXY0fYfeh1MxFihlMTk4mJCRgtqAA3Mb7R1cAdXV1jGN+fj7K\/vr160l0YeAXoQsYWdilkJAQWCccBxQJ7O\/XX3+NXEWSw+Gyqt9kuzSgu3vnnXdgxjBzIBBQWXR6OLLQAnyB5gISPsMyYOR4PF5BQcG2bdugICQqazCx29rasrOzYX9mtNmopUg4aF9sbKyfn5+hoaGxsTEUDbv8v\/\/9DxMGiQWXxP5z48hvaNyXX36JIcCRhy5AINA+oLnDCKLkQqnd3d1n6DgDtAM7i5mzadMmqZ6CDWDqIgkxjpCGGVk3P3B8MB0Qegzrjh07YH5xiNBjHj9+PD4+HpUMrmquS7mygtXSADuNA5eYmIg8Q0qh\/ly6dAlzHp0CigyqEOYM4yPIL0yBYnvo0CEU5+3bt9\/5i1KXChRMZAM+PFLK09OTRKdAwkELmLXDUVFR0Ds0FJcvX8bOYtcQ2bt3LwQFXon8AiuBtcFgYYwwNNBr1ED052iRUB5RJ9EWoUju2bNH6jk8KP6RI0cgkQ8++KDU05MsAZqF1qCyshK7s9i1WEhUiCOKFvwgRB+t04kTJ3B8sMu\/\/\/3vH3roobku2cgKVksDmm24Bm9v73379m3ZsgUJh9qLJi09PR3lFxLL3J4wownPyMjAoYdlWPmV0fMDUUB9KC8vh2GeYR0hDZgYzN1E2OD9999Hi25pafnEE0\/85je\/gZWALrD5XMPo6CjGpbu7e+fOnQ888ACKqoGBAfpn9FCYCZBpR0dH9Hd2dnZSHQHGKykpKTw8PCwsjOWnVKB3aA0wjvioC5zJEokEfSKOAw7R2bNnc3Jy8BdQtOChHn300ccffxyWEAnAKl0A7JUGZBtsNoQW0oC5BCeG9GJOQKL8Njc3M23bjFSDlfjiiy8gCnFxcWw7lYUeG8MPVwmNwB5NnwNwB8x1OxTekpISiMJjjz325z\/\/OSIiAmqILadvzELw4ZH3OOCY3hBr5shjSsAK1dTUwC\/Y2NigbErVhZaWFvTbMAu7d+9m\/\/kUjN3Y2Bh6AYwm6rzU5mgGODjnz5+HTcjKykI+wz9CQN9+++2HH34Ycom\/w87BZa80oKP7\/PPP4TPRPmA8IKtMd4BpAy8HmYBGIJ9mHFa4Cagykoydp7KQ+qge8AXYixu3gULmjh07dvToUcThMAMDA9966y24HtbOE5hqlEGkOPl+Strq6+tx5OGGsGvMoEAHIXMwDhgm+AWpEwB\/JyUlBQ38rl27MKwsV0CAvdbX18dINTQ0+Pr6Sj2lOgNIAzpcHBwUM\/gpZDLaB\/YvnWKvNPT09KDZRtKg7DDnF1CLbiyzRWmysLCYsUYAknzy5EkrKyt0H1ATEmUTUDfMotTUVEz7G83qhQsXDhw4gB1k5ABd+r333ostUXUBC2cL\/D9Ay3BDvKAC0Ivvv\/8eEwCfefXq1fgR9ujf\/\/53XV0dvDekgdlyBrW1tfgtdBzMc7FIlN3AwGLXkJZwDdBBEp0XJC38FNpDHArkp729PVIXdgldJPZ6IdZj5WGvNOCQrV27FpMcQtvb2wtLBrONjEQyCYVCHNzZp+XQr8KuP\/nkk3PVKDaAogEJq6qqMjMzg9KhbPb19eFrfOynnnoqODgYHx7TjMfjQeZgXJFV2IxVu3P48OEXXngBqo0PhrnBNMnYL11dXQwTuoO0tLT09HSYvoyMDEyJRx55RKpSwyKdOHEC0wwtNxuWnywQjAiqVFlZGYwDjMAtzxGgjYLJdXNzQ8ZCMbE9jtI\/\/vEP\/AtLhWSATCAB2Jax7JWG7u5uyLOnp6efn19AQAAmDCQW9RZzBkfZf9abbCEZ0A649HvuuUdqT8sSkFiTk5P5+fn4kN7e3qgY8Nv4wtnZGXuEz49c+eCDD06dOjUwMICfdnR0YHtMPPbsFHo9aDTsAPaiv78fnw3gozo5OTGX5TAWYHR0dMeOHb\/4xS8wMchv3gzEBUOGBio6OpqdlXMuIA04CDAO2OUbjeE83Jj28L+vv\/46RBMCgayG7xgbG4NBxnG7YcFYAhulgblmCVlFzXRwcEBpQvuAvg5OG\/MKerFp0yZMpBkqm5ycjM4WvpSdZxmmgyRobW1Fcw69g\/eGItyY9nA9f\/3rX9FJoRfFpMK0wdGAWOBXjIyMWDJ\/UP3wgVdNLfG8ePEiBALTA0F8gX2JjY1F0mOwoAvwC66uruTXbgbzAZYB3cd99913G3clyBbsJuZ2ZWXl9evX0Rgu8Bo5VP7NN988duwYKsH\/\/d\/\/YcdR4ZADg4ODcI5znaaVFayTBlRIzHBIA1QZGePu7g5pwDEFaNLgt2HhmAsW5BemwEw7d+4cahfa9dmNBttAr4QkyMrKQoFFYt2Y8EVFRX\/5y1+ys7Ofe+45fMEsc8JBQKnBREIOMWf+ZY6BgQEcAXbhmWee0dfXhyJAIHJyck6fPo3qB3Vet24dvB7MHX5Kfudm0EYlJCTAeuzcuRNbsrb7mwd0Ty0tLegIMIILMQ6Q0QsXLvzrX\/8KCwt7\/\/33Q0JCkKjIBIgj6gEsGMQUf5NszQJY5+K6urrgRaGmb7\/99u9\/\/3t7e3sEYa3RtWKG4NgxqxuYjW+Axg8tK+YS\/AUJsRt4bMyf6urqK1eukJCSEuZY8dTb\/fft23fj\/BbMBUwEvCt0hImwAcx5fB5oBMbon\/\/8JwYFUz03NxefEypGNpob7DVGE3ZaTnUBaGtrM+tNsNcQShKdGxwuWIyJiYnIyMjpa96gql9++SUqIttOnLNOGnp7e5FbMAs4fKiTjI5CCxCHuEKnmc2m09nZiXoLUVi\/fv0tzwmxBOwR6gYa9dTUVBKaOi2HeYIqNP2897Vr1xBnHqBGQiyA6bHh1GCt0d9t3LgR39ra2iYlJf3ud7+DHcAcIJtKA2KHfcdvLfY+JVYBWwSJx85O1\/e5wIHCyKJrQK5iTEl06noHSlpMTMzsgidbWNdQIKVgAdDF4aDf0FEul5ueno4gMhJtBRO8QXJyMoYHxdbX11eOShBSoXEK2AdmhsBzNjQ0QOnQR6Ago9HAjsO3w2qie0fZYa59Mr8uW5DQsHLIckwPqPbBgwednZ3\/+Mc\/4kNiLCBt+MyYDGTrm0HDCIuBDaKjo2c0hvIFdhDtANISSYvdwWCRH0gDmYlhxfEpLy\/HEKNPRHpjcHGsoK2ogih7aBjZU9tYJw3ovtAaHD58GMqK6YFDiZqJPvabb77BSMTGxs7o68bGxk6cOIFJtXv3bmxPovIAZgVsJJpVpBcsElIHvgAGFZ4cWYI9QqJAPtasWQO7juMA24nmArvPko4UM6Gjo6OpqenMmTN8Pv\/Xv\/71PffcgxkCg+Pq6goFlyrTEBSM1+DgIEvul79DMEAVFRVogdFc3LLsI4FxZNCLMSsa0E9huCH3GGgcwA8++ABBVES2qAPyUlYg3TENUlJSUCpJaApUoU8++cTb2xseISgoCF4ARxPT44svvsBcIhv9yOnTp59++mnmXLfcgdYJCfGHP\/yhurqahCQSHBPoIKirq2MiyLzXX38dognnmZ2dzQTZACQbbRGk6p133oGCk+i8nDx58sknnzx\/\/jz5Xs5BDicmJv7iF79AHs5OTqlA9Lu6upjDBYnk8Xj79+9nzj48\/vjjzPNd2ICMXQN04ZVXXsnPz4clQz2EfMIwYw6sX78ejgvtKPw2ShNM11NPPfXggw\/OOFUzNDSEIUF12rZt24wbluQC7Cn2Fw4c6YJGlHGkhoaGaNpRPXAEkEPx8fFvvvkmmnPsIBw4jgx7lscggaqqqlAtoW6msx5RMxtUy7Nnz8Iu7dmzh\/0XkhYCBgJeFbUN8g27tJBTJ+gmYHWhKaWlpXCCqIJZWVkYeuh+ZGQkxneBl0KXG2WMLvlSFkAyUUOQXpgM8KKY4Vu3bkXqCwQCHDhmqgwPD+OIoxmboQs4uMnJyadOndq8efP27dvn6mxZDuQPjTpqBbwPnBEiGJHr168jgiYWNTY9PR1iAa+OgwOlQHu\/YcMG5jmLzF+QIaiTzc3NSHRnZ+f5O20G+L7c3FzsS1xcHAnJP5B1GIdjx47dd999yN5bqjZaMGx\/\/Pjxq1ev4nfd3NxuvKELg4tqsWnTphlds0yQsWuAHcBMgO5CLHFc4DPT0tKuXbuGY5eamhoeHo64jY0N+u3ZMwGT6ujRo8hIDMlc18\/ZD0oodq2wsBBaEBAQgPwAkMV3330XPhOyiJ4crmH37t3ozOEjLl68iCOzbt06c3Nz8idkBw4+vAzyeCEnR8vKys6dO8fOm2LvBOw7Sheyt7u7GxXulie8YJf4fP63336LTvnFF1\/ct28fzKCFhQUqYltb23vvvYfj6e7uTraWHbI\/3Q2NhASgDH766ac4TJgMn3322UcffVRQUICKJBKJyHazyMzMRK\/OrAsiIfkERtTKygqOtL29\/UYE+YEW4+WXX3711VeRKIwywkzBUGCO4SgxW8oLaK0xXiiSISEh8rL2ZOFgj9AAtk49cpqE5kZFRQUbv\/DCC3\/\/+9+h+MhexnBBWSAZSAO4MGZL2SL7KxQo+BBLzAoU\/7CwMLQVyH6UTZgCHKaamhocO1TLGXVpfHz8q6++woTZuXOnXF8bB2iUkC4oO\/DnsAPojOAqcVhQVVBgmXMokMi8vLy33347ISEB5gJWQr4m2OUpML5wzvKy9mRR6OrqQhc6OjpcXFxmdL6zwdghz62treEQ8e3AwAD81FtvvQUXDNV49NFHpy9skRWylwZIJkw1+i6oA9wm\/FhWVhZq5s9\/\/vOhoaGcnBw0Y05OTtNbWcyT\/Px8Ho8XFBSExnv6j+QUJFNjYyN0kDn7CB1kBBE\/wkSqqKg4ePDggQMHqqqqMLUgDfBT0BG4UCa3WA7qIZIeneMDDzwg7zo+F8hbJDDSEj3FLS\/KqqurI7crKysx6N99993HH3+Mf9FRIp+hnhhT5IPMT6uzYl0DDiuEs7y8HL6auRkZRuvZZ5+FKEAsoK9QiulzAJbhxIkT8F3btm1byIlx9gNxhATk5uZC5lB28DW+wA5CJb\/\/\/nukTkpKCorMc8899+STT8JZwE8lJycbGxvPXgDGNsRiMfwC5gw6R39\/f7nQstsAao6KBXHHDjo4OGBAyQ\/mYHR0NCkpaf\/+\/efPn8cvbt68+emnn967d6+rqyskAw4RtUG2xpAV0oCjiQqJPuL06dM4UrDTv\/zlLyEHAP02JsD0fELxQUuWnp4eGBiIxlVOL0zMgDkCcAd1dXWMcUAQ6oD+\/L333sMXEIU\/\/elPzMpi\/BSW4cMPP0T+LeR5AbIFs4V5vs6ePXswsiR6N4JERUOBWY28tbGxIdE5gC\/AWMMUQw6ef\/75J554AiUBNRLjC\/cBkwhd8PPzI1vLArbcQ4HWmnlmNLxDeHj4PEcWcosqhNkCabibUg3zHM0Caiy8A3MDAmwnash99933xhtv\/Pa3v71xTNB8wZ8jC5FGOA5MkJ0wZx8xZDExMfJ7FWmBQKN9fHzU1NRKS0sXcp4YZQ+K\/+KLLyKTb1Q4\/C4KJNRB5hdx2CINADbswQcffPjhh+NmvY1qOpAP5r4DGGwSultgljMVFRW1trYyEbRU8JmRkZGMb+rp6Tl16hSKDFrT4ODg2NhYllsG+CDkupOTEzRuuvW7W0Hlh+lDRwD5JqG5sbOzwyAyZQAlAT3XRx999Mwzz8THx6NIAGYzWSHjJU+zwTGa5yL50NAQjHRfXx86DgwDid4tYCx4PN4333wDJwmzwOgjgtXV1Z2dnQ0NDei2YEFhXO+\/\/34YUZaLI4bp448\/7u\/vR7rf0mDfNWRkZHz99ddBQUEYoNmLcWbQ29ubmJg4ODgINUlLS+vu7kZW79q1695775X5uhUWuQaGeXQBYHpcu3bN3t7+7rMMAHUV1RU5UVxc3NTURKJTD6r55JNPYD4hHNHR0e+9996f\/vQn9h8B+IXm5mZ\/f\/+74DaqhYO5jdYYfXFdXR0JzQ06Ygz0a6+9BjXBUXr22Wcx0PCJbFjPxjppmAdUoUuXLunq6oaHh99Ny+mmo6enh70TCAR5Pz7yAHphZWWloaGBwvv6668fPHgQ\/QX7T75CxFEPLSws0PXML\/d3GUZGRlBD5Cqfzx8fHyfROYA0eHl5QU1eeeWVQ4cOQfHRKbOkSWTFFYoFUlZWlpSUhEO5ceNGlvfYdwIqBuotag6yhLlUATWELoSGhm7ZsoUld2TPD\/N0T\/RBaHwcHBwU4SzDdHR0dOBtGxsbMWro\/kh0DjCgHh4eO3bsYNvIyo2co2VFm43mDTPklheN5Rqonp+fn1AoRFvBrBNXV1eHIAYHB8uLV6qtrS0sLITZQcutaLoADAwM0FN0Tr2LiITmxsTEZMOGDSwcWbmRhitXrlRWVqKQOrPsTZbLQUhIiL29fVZW1o01+eggUFVYfqmSYXR0NCEhAR91165dJKR4wAhgBKGP7T\/eFzMXkE52Dqt8SMPQ0BB6bzRmmDMkdFcDRxoQEDAxMYHcumW\/yjZQKmtqalA2775LSAvH0tIyMDCwqamppKSEsX5yh3xIQ2tra1VVFZpwxzlednL3AWlAevH5fLSsJCQPwEUzK7ijo6Pv4vNBC8HW1pZZ4To4OEhCcoUcSAOOLKw1voiKipKLk3BLgrq6emhoKCzD5cuXSYj1iMXilJSU+vr6mJgYhbpgKRVIQ1xcHKSBefwnicoPciANDQ0NpaWlVlZW05\/erwh4e3sjvYqLi5ubm0mI3cA\/5+TkODg4wPKQkALD5XKZB20ge\/v6+khUfmC7NKBP4\/F4QqEwKCjolmvL7jL09fV9fHwmJycx3wQCAYmyFXxCtBIYr8jIyHnWuSsUaAlh\/aqrq8vKykhIfmC7NDCXwezt7QMDA0lIkfD39\/fy8kJPAZdOQmwF2Z+dnR0SEuLr60tCCg+HwwkODoa4I4dZ8uymhcNqaZiYmCgqKlJWVl6\/fv3dvZZhLnR1dbHvQ0NDJSUlsE4kyj4GBgYuXbpkYGAAc6fgZx9nYGJiAuuHVgt9MQnJCayWBliGrKwsDw8PJBwJKR5+fn44AugpFnIzn6zIzMysqKjYsmWLra0tCVGmgLjjsAwPD2dkZMjXEz3ZKw0wYHw+H8YBonu33jGxEGCXoA4jIyMFBQXsvELe2dmZmJjo7OxMWwmpWFhYuLu719TUsL8rnA57pQEGDB2ao6MjTThm+VBeXl5bWxsJsQa0OXA0XV1d0dHRt7xfQDHR1tbevHkzBLS4uFjMptedzw9LpWFychIeVSAQBAQEKNqFidkYGRlFRET09fWhvWLb4sjq6urTp09v3bp1\/fr1JESZhZubG1qt8vLyhTyNniWwVBqY583DMqBgkpBi4+DggMaKx+NNf\/+6zBkYGEALraKiEh4ezpLXsbETZWXluLi4wcFBWD95Wf7ERmlAR11VVYUiCV2Qr7ctLB8GBgYhISEdHR18Pp89ZxzgkPPz85H0dO3jLfHw8Fi1alVFRQU6CxJiN2yUBhTG1NRUT09Pb29vEqIoKTk7O+OAZGdns+QyWFdXV1JSkrm5+caNG0mIMjfMGQcUvNzcXHaeTp4B66QBdgvKCnXw9\/enp7Wmozv1eKve3l60rGwwpYWFhU1NTbGxsTJ\/mYpcwOFwAgIC9PT0ioqKenp6SJTFsE4aWlpasrKy0FrT01qzcXV1hXHA8ZH5GofKysqEhISgoCAfHx8SotwKHR2dsLAwNBSwfiTEYtglDSiGaF9bW1uZd7GQKOVHYBxgSq9fv87n8ycnJ0l0xWHuBx0YGNi5c6ciLzm5DeD70Fnk5OSw\/zEc7JKGjo6OgoKCtWvXojySEOVm7OzsYKlgSmX4HIeysrKSkhJYBva\/Vo9tGBgY2Nvbd3d3s\/8qJoukQTR1k2VdXd22bdvWrFlDopSbgSm9\/\/77Yaxk9RyH4eHh+Ph4lL49e\/aQEGUxbN261dTU9MyZM0NDQyTESlgkDUh3FENUxXXr1pEQRRooOzAOKDsyeY4DJKmlpWXLli2047s9YIqdnJwaGhoW8qIKGcIiaSgsLLx69SpyjnnCOmUu1NXVo6Oj29vbi4uLSWilgBilp6ebm5uHhYUp1NsllpbQ0FDYroyMDOZVI+yELaOLRIdlsLCwoBcmFoKHh4eZmRmfz1\/h9TNnz54dHBy87777FPMe+aUC1tjR0bGkpITNxoEt0lBdXQ2bGhISgl6ahChzw6yfwRErKCggoeWnqqqqsrLSzc1NkR8VvVT4+fnp6uqiO2PtumlWSMPAwAAsA9Ld39+fhCjzwuVyIyMjNTU1eTzeyhgHgUBw+vRpmIWtW7fKxeswWA6kASKLnqL1x7eisw1WSAOM8ZUrV1AG6R0TCwet\/qZNm6ALSC8SWk4yMzMbGxvDw8NhhkmIcgdAXtEVqqur5+fns\/OMg+ylYXh4GK5YKBSGhYWx\/y2vrAJHTE9Pr3D5X2PT09OTlJS0Zs0aSAMJUe4Yd3d3T0\/P1NTU3t5eEmITspcGFL2GhgZYBroUf7HgiME4ILGSk5OXtWU9evTo0NBQbGysgYEBCVHuGGbd9ODgIBwZC2+4krE0wCzk5eWhg6V3790egYGBKObZ2dnLV3na2trQ8bm4uHh5eZEQZYlwdXWFd4Cyd3d3kxBrkLE0wAy3t7f7+fnRmyxvDzQUUAckFo\/HI6ElZXR09Pjx47q6uhEREfR2iSVHU1MTPUVnZ2dtbS0JsQZZSgOs1MWLF5HcMTExCviq9aUiKirKzMwsMTFxYGCAhJaOgoIC2Dr8Lzw8PEiIsqTAi\/n7+1+4cKGrq4uE2IEspaG0tBRmFZaBLn+8E9COeXt7j4yMYA6T0BIB7U5ISLCysqJP7l0+0A8GBAQ0NDSw7YYrmUkDnCpaLHjULVu2kBDldgkLC7O1tY2Pj19a45CRkdHR0YFWAq6EhCjLgKurq729fXp6Oqse8SIzaSgqKmpvb0ejpa+vT0KU28XQ0BCmFLrA4\/GW6nHmdXV1586dg6dT5PcDrQympqYhISFlZWWsOuMgM2mARuro6AQHB5PvKXcGPL+NjQ2M2JIYh4mJiezsbKgMFIdq93KjrKzs4uKC6cDn89nziBfZSENNTQ2Kkru7u6OjIwlR7ozVq1dDZ7u6upZkcWR+fj60OzIykt7ttjJYW1vHxsbm5eWVlpaSkKyRgTRAFxMSEuCBYaLohYklxMvLa926dUlJSXf4bsXOzs60tDRjY+PAwED6btuVgcPhQIXV1NRKSkpYsm5aBtLQ1NSE\/Xd2dqaWYWnBZEZ6dXd332HlqaiouHLlSlBQEEoZCVGWHxMTExxzjB1L3nu80tIgEolOnjwJ9xsWFkZClKUjICDAz8\/v+PHj7e3tJLRI0OjFx8e7ubmFhobSh7WsJDo6OtHR0X19fTk5OUKhkERlx0qPfXNzc1lZmYuLC33K23JgZGTk7+\/f1tZWVVVFQosBVpbH4\/X29oaHh9O7YFcec3NzKDsmSHl5OQnJjhWVhvHx8QsXLsD3orjRswzLhLu7u5OTU3JyckdHBwktmIKCApQsb29vHx8fOkArj5qaWmRk5PXr1\/Pz80lIdqyoNNTX12dnZwcHB9NnyS8faNZQ869du1ZYWEhCC2N0dDQlJUVVVRW2lt4dLyvs7e0h7tXV1RAIEpIRKycNAoEgMzNTX1\/fw8ODPiZoWYHyOjg4XL58eVGr61CpGhoaYGhtbW1JiLLi6OjoREREYOAwWUhIRqycNNTU1KSnp4eGhtInCy43pqamUVFRmOcLNw5wGUlJSZaWlhs3bqSvw5ctnp6ejo6OaO6amppISBaskDQIhcKMjAw9PT1YBtrErgDOzs7wpag8C3n0oEgkwujAwaKVsLCwIFGKjNDV1Y2MjOzo6JCtcVghacB+Ivm8vb3ppfKVwdjYGMYBTq2kpISE5qa+vr64uHjt2rV07SMbQO1ES4jOAsMnwzdcrYQ0TE5O5ubmwqaij4UikihlOUF6Mb40Ozt7\/rdjYnROnjwJW7dt2zbYOhKlyBR9ff3Nmzf39PRcvHiRhFaclZAGpGZycnJISIiDgwMJUZYfqPCGDRuam5vnWRwpFovR02KA4BfoZSNWAYuNESwqKpLVK9GXXRqQfHw+v6+vLzQ0lBalFcbLy8vGxqawsHCuK2GoS6mpqRgXjI6mpiaJUliAqakp9BoTJy8vb6lutF8Uyy4N5eXl6enpgYGB1DKsPMyliqampqysLBK6maSkpIaGho0bN9rb25MQhR2oqqpi1mhpaWH6jI6OkugKsuzSUFZWNjw8jJ1UU1MjIcpKweFw0CaYm5tjFGa\/VhsRGAoLCwv6qGh2YmVlheG77WXvd8jySkN1dXVubi50gT50VFYYGxtHR0e3tLRcvnyZhKYQCASJiYlQbfyUPt+NnaioqISFheHfs2fPktAKsozSIJFICgoKhoaGgoOD6YUJGeLp6QnjgM5u+ssO4COKior8\/Py8vb1JiMI+YBzs7Ozg71Z++dMySgMsQ0lJCfwC7WNlC4yDv79\/V1dXdnY2E+nv78\/MzBSLxShKOvTV5CxGQ0PDx8cHY5ScnLzCd2ovlzTAMqSmpqJMbdmyhT5cUOYEBQWtXbsWcsC8VjstLQ0mIiYmxtnZmdmAwlpg69zd3Xk83go\/4mW5pAG70dDQgMyj9+qwAUNDQ6gDmjvmcQx8Pt\/IyIg+Klou0NbWhnFQUVHJyspayWfDLZc05Obm9vX1oZXFjpEQRXZwOBykl6WlJYzDt99+C43YvHmzqakp+TGF3Tg5OZmbmzPrg0ho+VkWaXjnnXcee+yxsrIyOzs7EqLIGtiEiIiI+vr6f\/\/73x4eHqGhoeQHFNajp6e3YcMGoVB44MCBFXsA1NJLg0QiSUxMxBdjY2OrV69mghQ2gOYOSSYWi11dXemd1\/KFl5dXZ2fn\/v37UXTv8InhC2TppUFZWfmhhx7S0NBwc3OjJyBZhaGh4e7dux999FEDAwMoOIlS5AGMHUYNX7S2tq7MpQplmiIKxejoKGqOpqamjo4OfXCGfIEOHa26s7Pzq6++SkLLCZUGBQXjTqWBMg9UGigUihSoNFAobEYiFk6KRBIJV0WFoyQWCYViifLUlIXr43BUVFS4nOUxf1QaKBQWIxmqSz1+\/kx66ZiGuipXaXJ8XCCceniDRCIWK62237D94d0RTibL8G6A5VryRKFQlgIVTUMTk1XiptSvPv3kaEqzhpmtk4Ot9VpbRwed4b6axPO5FXV9SstR3qlroFBYz1Dlkb\/99s1T3JDX\/rP\/cVtdtBXKKiqjVRmXzp+vs42L2xHmorbkbQWVBkVD0Fd5+dSJtPoRkZCjqmbiHrQlIsiQIxgcU11tZLiKrmpnJeKO1H8+887XAq+\/f\/HWrlVT73caHu5r5DcJBvtX+TiYmltoKS21NNxBQzE50FGWdO5cfH7TsJDKizwgGa7PPfLh\/\/vzu1+dL7jS1NzW1nKtLv\/SyU\/efPXdz47mNw7I\/u3MFOkIBWOTIqFYNIH\/MpHWnMyzh\/ktQtsAO3NLzSXXBcB97bXXyJeLRNJTePpff37p07RRm8hQN2MNetaC7fTlfffmn9\/8NnXM77m\/v\/X80w\/v3r4tJthMvSXpvwdTGziugZHeDkb0IX2sRDLcyEtJTa\/tkggnBttri\/PT408m5tUpr\/UL9bXTXw5huAPXIGq9mnkhu6i+qqKqqKhmSETCFJYy2Hrx4Jt\/O1q06p5X\/vvurzbbG+tpa2lr6Zv4bPnlP9565qFQw9GBwUW8IJOysnC5qqqi4et1uQmnThw7dvz7M4nZJc1jY2KuCtlg6bldaRi6doXfMq5vZ2ZuMFhRUlI3RFsKNjPZVXrx8OnMJr3wHdt2e814GN+aoNi4e3e7OphyZPPCA8otkUxOjI+pr1m\/5bmP\/\/Plf\/\/7+ZdffPSXfVvWrlYV9o2RTZac25MGUccVfhqP6xj06+d\/FiS+VsAruLIS94JRbhPJUGNxXkVzv5mfn5ezxawxN\/DxDYrb7GVpsXwliHJH\/LCIQcRR0dQzNrcwMDAyNrb0DQvdtM3d3lpt2Rr52\/rDE\/VXS7Mrta0ddz\/2810BdirX+Fl5tVQb2MvE0PVrnQMjypbWhsaGUoacw+Fw1bjKy7SsjnLHcDE8qhwlsfjGY57U1zkH378rwHatpKtrYKhPsPSu\/XakYai5vra2x2n9urD1q1db+\/mv0xquKyltGKUnuNmKMqY+R1lZIhaKxHSU5BCOCkdJKMQoaqr96Ow4HGWuSt+Viotn4vPrm8dZIQ3djbWlWdXjo92DvRU1BeVdI6LJgat8fmnTkAzevkVZCGq6ZramhjpK7S2DXfO6O3rGiHUIR\/quXcmMv5RdVNzaUFmQmVVYVMDLycnl5RecO3Tw8\/f\/U9U5qG6mufR9xaIvXoqvV+YeOxKfWVbb2V6WnZqRW1B+tfF6e6+GXUBggMsaDepJ2YiqhniwIjcrtUnFLTQsxFpvRiKJxsfHBoeFShxVVS4dQFYhGWq4\/P2R\/3xzoXZwUo0r6q4ty8vOzEi\/fDnjcnpqYlGXivuW+3eHuhkt\/WmiRa+GbMv5\/qsPkjr0zAO3Ok0MCLjqasK+8pSvvuZpPfDKB6\/u9dKfWqpFYRsDbRcOPP30+5cNH3rhwBuvRk1\/XdVYF+9Saa9Exdnfz9aULodkGeNd1UVlZXUdynra6krCseHh8UmJZEq\/xRKJtrHder\/19mv0lmHWLVYaOlO\/\/vp0o+OWh7bH\/fR224Gqf+97+K\/Fts\/864OXIq2X4SYwyhIgac\/471\/+euBsmVL0b1749Q6fVRoqXJFwYrQu6zKvUuJxT9TWcH8TbarsFIZFNBSi8c6m1OOHPrvUabHONczRSftHDzPe3VfHO3Esgdcu1jO3c7Yy1lDl0JPdrENZ19rZxdVUdbCOn5DBv1pdUsDLzszmV1+fXBMQHbEx3Mtcl66FpNxg4dIgHqjPOvnJ5\/87zutVVdO3sHG0Ntf7QRwmR2rSL168mFhyrbOzq\/W6xMTR1c5cT5P2rCxEzcjC1d\/PzVyTo6ypp6+vr2uwysQhaMcDuzc5G2pQt0eZzsIbCtFAA5+XVljZ0TuqZWDqGLI10sv0h+eVC4av8lJySxoGuKpCweC4nmvE5nAfKwNVKg0UihyziHMNErGQefqURIzf46qqqUyd55ZIRMJJkVjphwUzErFIgp+oqtJ+gkKRbxZ9hYJCoSgCS79SgkKh3AVQaaBQKFKg0kChUKRApYFCoUiBSgOFQpEClQYKhSIFKg0UCkUKVBooFIoUqDRQKBQpUGmgUChSoNJAoVCkQKWBQqFIgUoDhUKZhZLS\/wdWRqwKOmuF6gAAAABJRU5ErkJggg==\" y=\"1.5\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["<strong>A. <\/strong>\u0110\u01b0\u1eddng g\u1ea5p kh&uacute;c ABCDE","<strong>B.<\/strong> \u0110\u01b0\u1eddng g\u1ea5p kh&uacute;c ABCD","<strong>C.<\/strong> \u0110\u01b0\u1eddng g\u1ea5p kh&uacute;c BCDE","<strong>D.<\/strong> \u0110\u01b0\u1eddng g\u1ea5p kh&uacute;c ABC"],"correct":"[\"2\",\"3\"]","level":"3","hint":"<p>Con h&atilde;y ch\u1ecdn&nbsp;nh\u1eefng \u0111\u01b0\u1eddng g\u1ea5p kh&uacute;c c&oacute; 3 \u0111o\u1ea1n th\u1eb3ng nh&eacute;!<\/p>","answer":"<p>M\u1ed7i \u0111o\u1ea1n th\u1eb3ng trong h&igrave;nh tr&ecirc;n \u0111\u1ec1u c&oacute; \u0111\u1ed9 d&agrave;i l&agrave; 4cm, n&ecirc;n \u0111\u01b0\u1eddng g\u1ea5p kh&uacute;c c&oacute; \u0111\u1ed9 d&agrave;i 12cm s\u1ebd l&agrave; nh\u1eefng \u0111\u01b0\u1eddng g\u1ea5p kh&uacute;c c&oacute;&nbsp;3 \u0111o\u1ea1n th\u1eb3ng.<\/p><p>\u0110\u01b0\u1eddng g\u1ea5p kh&uacute;c ABCD c&oacute; \u0111\u1ed9 d&agrave;i l&agrave;:&nbsp;<\/p><p>4 + 4 + 4 = 12 (cm)<\/p><p>\u0110\u01b0\u1eddng g\u1ea5p kh&uacute;c BCDE c&oacute; \u0111\u1ed9 d&agrave;i l&agrave;:&nbsp;<\/p><p>4 + 4 + 4 = 12 (cm)<\/p><p>V\u1eady ta ch\u1ecdn \u0111&aacute;p &aacute;n l&agrave;: <strong><span style=\"color:#3498db;\">B<\/span><\/strong> v&agrave;<span style=\"color:#3498db;\"> <\/span><strong><span style=\"color:#3498db;\">C<\/span><\/strong><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"125","test":"3","date":"2021-08-04 15:25:57","option_type":"txt","len":2}]}
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