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xlink:href=\"data:image\/png;base64,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\" y=\"7\"><\/image> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"49.9\" xml:space=\"preserve\" y=\"118\">1<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"178.9\" xml:space=\"preserve\" y=\"119\">2<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"314.9\" xml:space=\"preserve\" y=\"116\">3<\/text> <\/g> <\/svg><\/span><\/p>","options":["Hình 1","Hình 2","Hình 3"],"correct":"1","level":"1","hint":"<p>Ki\u1ec3m tra xem trong các hình trên, hình nào có \u0111\u1eb7c \u0111i\u1ec3m:<\/p><p>+ Có m\u1ed9t \u0111i\u1ec3m O mà khi quay hình \u0111ó xung quanh \u0111i\u1ec3m O \u0111úng m\u1ed9t n\u1eeda vòng thì hình thu \u0111\u01b0\u1ee3c "ch\u1ed3ng khít" v\u1edbi nó \u1edf v\u1ecb trí ban \u0111\u1ea7u (tr\u01b0\u1edbc khi quay).<\/p><p>+ \u0110i\u1ec3m O \u0111\u01b0\u1ee3c g\u1ecdi là tâm \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình.<\/p>","answer":"<p>Quan sát các hình ta th\u1ea5y hình có tâm \u0111\u1ed1i x\u1ee9ng là hình 1.<\/p><p>Tâm \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình tròn là tâm c\u1ee7a hình tròn \u0111ó. (ch\u1ea5m \u0111\u1ecf trên hình)<\/p><p> <span class=\"svgedit\"><svg height=\"140\" width=\"140\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"142\" id=\"canvas_background\" width=\"142\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_6\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <ellipse cx=\"69.9\" cy=\"66.85\" fill=\"#ffff56\" id=\"svg_1\" rx=\"49\" ry=\"49\" stroke=\"#000\" stroke-width=\"1.5\"><\/ellipse> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"69.9\" x2=\"70\" y1=\"-0.15\" y2=\"143.85\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"-0.1\" x2=\"140.9\" y1=\"66.85\" y2=\"66.85\"><\/line> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"10.9\" x2=\"129.9\" y1=\"26.85\" y2=\"107.85\"><\/line> <ellipse cx=\"70.4\" cy=\"67.35\" fill=\"#ff0000\" id=\"svg_5\" rx=\"4\" ry=\"4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/p><p>V\u1eady \u0111áp án \u0111úng là<span style=\"color:#16a085;\"><strong> Hình 1<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"3","date":"2021-09-02 13:04:50","option_type":"txt","len":1},{"id":"7078","post_id":"4639","mon_id":"1158113","chapter_id":"1158130","question":"<p>Trong các hình sau, hình nào có tâm \u0111\u1ed1i x\u1ee9ng?<\/p><p><span class=\"svgedit\"><svg height=\"170\" width=\"400\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"172\" id=\"canvas_background\" width=\"402\" 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=\"111\" id=\"svg_1\" stroke=\"null\" width=\"120.00001\" x=\"9\" xlink:href=\"data:image\/png;base64,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y=\"6\"><\/image> <path d=\"m137.98049,72.885l48.5,-67l48.5,67l-48.5,67l-48.5,-67z\" fill=\"#aaffaa\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m153.12551,73.75999l33,-46l33,46l-33,46l-33,-46z\" fill=\"#ffffff\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m252.5605,126.895l23.4375,-87l78.12501,0l23.43749,87l-125,0z\" fill=\"#aad4ff\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"52.9\" xml:space=\"preserve\" y=\"155\">1<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"163.9\" xml:space=\"preserve\" y=\"158\">2<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"310.9\" xml:space=\"preserve\" y=\"158\">3<\/text> <\/g> <\/svg><\/span><\/p>","options":["Hình 1","Hình 2","Hình 3"],"correct":"2","level":"1","hint":"","answer":"<p>Quan sát các hình ta th\u1ea5y hình có tâm \u0111\u1ed1i x\u1ee9ng là <strong>hình 2<\/strong>. (tâm \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình là ch\u1ea5m \u0111\u1ecf trên hình)<\/p><p><span class=\"svgedit\"><svg height=\"175\" width=\"150\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"177\" id=\"canvas_background\" width=\"152\" 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> <path d=\"m24.7155,86.74075l42.5,-72.00001l42.5,72.00001l-42.5,72.00001l-42.5,-72.00001z\" fill=\"#aaffaa\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <path d=\"m39.5905,87.51575l27.5,-46l27.5,46l-27.5,46l-27.5,-46z\" fill=\"#ffffff\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"2.9\" x2=\"156.9\" y1=\"86.85\" y2=\"86.85\"><\/line> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"66.9\" x2=\"67\" y1=\"-1.15\" y2=\"174.85\"><\/line> <ellipse cx=\"66.9\" cy=\"86.85\" fill=\"#ff0000\" id=\"svg_5\" rx=\"4\" ry=\"4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/p><p>V\u1eady \u0111áp án là<span style=\"color:#16a085;\"><strong> Hình 2<\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"132","test":"3","date":"2021-09-02 13:19:30","option_type":"txt","len":0},{"id":"7080","post_id":"4639","mon_id":"1158113","chapter_id":"1158130","question":"<p>Nh\u1eefng ch\u1eef cái nào d\u01b0\u1edbi \u0111ây có tâm \u0111\u1ed1i x\u1ee9ng? (Ch\u1ecdn các \u0111áp án \u0111úng)<\/p><p><span class=\"svgedit\"><svg height=\"120\" width=\"400\"> <g><title><\/title><rect fill=\"#fff\" height=\"122\" id=\"canvas_background\" width=\"402\" 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><text fill=\"#5656ff\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"100\" font-weight=\"bold\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"198.9\" xml:space=\"preserve\" y=\"92.85\">H<\/text> <text fill=\"#ff56ff\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"100\" font-style=\"normal\" font-weight=\"bold\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"16.9\" xml:space=\"preserve\" y=\"93.85\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"100\" font-weight=\"bold\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"287.9\" xml:space=\"preserve\" y=\"92.85\">O<\/text> <text fill=\"#bfbf00\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"100\" font-weight=\"bold\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"110.9\" xml:space=\"preserve\" y=\"92.85\">B<\/text> <\/g> <\/svg><\/span><\/p>","options":["Ch\u1eef A","Ch\u1eef B","Ch\u1eef H","Ch\u1eef O"],"correct":"[\"3\",\"4\"]","level":"1","hint":"<p>Ki\u1ec3m tra xem trong các ch\u1eef cái trên, ch\u1eef cái nào có \u0111\u1eb7c \u0111i\u1ec3m:<\/p><p>+ Có m\u1ed9t \u0111i\u1ec3m O mà khi quay hình \u0111ó xung quanh \u0111i\u1ec3m O \u0111úng m\u1ed9t n\u1eeda vòng thì hình thu \u0111\u01b0\u1ee3c "ch\u1ed3ng khít" v\u1edbi nó \u1edf v\u1ecb trí ban \u0111\u1ea7u (tr\u01b0\u1edbc khi quay).<\/p><p>+ \u0110i\u1ec3m O \u0111\u01b0\u1ee3c g\u1ecdi là tâm \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình.<\/p>","answer":"<p>Các ch\u1eef cái có tâm \u0111\u1ed1i x\u1ee9ng trong hình là ch\u1eef H và ch\u1eef O.<\/p><p><span class=\"svgedit\"><svg height=\"160\" width=\"320\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"162\" id=\"canvas_background\" width=\"322\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_9\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <text fill=\"#5656ff\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"150\" font-weight=\"bold\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"26.9\" xml:space=\"preserve\" y=\"138.85\">H<\/text> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"80.9\" x2=\"80.9\" y1=\"3\" y2=\"178\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"4\" x2=\"147\" y1=\"84.85\" y2=\"85\"><\/line> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"150\" font-weight=\"bold\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"193.9\" xml:space=\"preserve\" y=\"139.85\">O<\/text> <ellipse cx=\"80.9\" cy=\"85.35\" fill=\"#ff0000\" id=\"svg_5\" rx=\"5\" ry=\"4.5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"252\" x2=\"251.9\" y1=\"5\" y2=\"180\"><\/line> <line fill=\"none\" id=\"svg_7\" stroke=\"#000\" stroke-dasharray=\"5,5\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"176\" x2=\"322.9\" y1=\"87.85\" y2=\"87.85\"><\/line> <ellipse cx=\"251.9\" cy=\"88.35\" fill=\"#ff0000\" id=\"svg_8\" rx=\"5\" ry=\"4.5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <\/svg><\/span><\/p><p>V\u1eady các \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>Ch\u1eef H<\/strong><\/span> và <span style=\"color:#16a085;\"><strong>Ch\u1eef O<\/strong><\/span>.<\/p>","type":"checkbox","extra_type":"cloud","time":"0","user_id":"132","test":"3","date":"2021-09-02 13:25:52","option_type":"txt","len":0}]}