Ôn tập chương 5 Tính đối xứng của hình học phẳng

Home Toán lớp 6 (Sách KNTT)Toán lớp 6 Tập 1 Ôn tập chương 5: Tính đối xứng của hình phẳng trong thực tiễnBài tập nâng cao

{"common":{"save":0,"post_id":"4662","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7239","post_id":"4662","mon_id":"1158113","chapter_id":"1158130","question":"Trong các câu kh\u1eb3ng \u0111\u1ecbnh sau, có bao nhiêu câu \u0111úng<\/strong>? <\/p>1\/ Hình bình hành có m\u1ed9t tâm \u0111\u1ed1i x\u1ee9ng<\/p>2\/ Hình vuông không có tr\u1ee5c \u0111\u1ed1i x\u1ee9ng<\/p>3\/ Hình l\u1ee5c giác \u0111\u1ec1u có b\u1ed1n tr\u1ee5c \u0111\u1ed1i x\u1ee9ng<\/p>4\/ Hình ch\u1eef nh\u1eadt không có tâm \u0111\u1ed1i x\u1ee9ng<\/p>","options":["2","3","1","4"],"correct":"3","level":"3","hint":"\u0110\u1ebfm s\u1ed1 câu kh\u1eb3ng \u0111\u1ecbnh \u0111úng.<\/p>","answer":"Xét các câu kh\u1eb3ng \u0111\u1ecbnh sau:<\/p>1\/ Hình bình hành có m\u1ed9t tâm \u0111\u1ed1i x\u1ee9ng \u0110úng<\/span><\/p>2\/ Hình vuông không có tr\u1ee5c \u0111\u1ed1i x\u1ee9ng Sai<\/span> vì hình vuông có b\u1ed1n tr\u1ee5c \u0111\u1ed1i x\u1ee9ng<\/p>3\/ Hình l\u1ee5c giác \u0111\u1ec1u có b\u1ed1n tr\u1ee5c \u0111\u1ed1i x\u1ee9ng Sai<\/span> vì hình l\u1ee5c giác \u0111\u1ec1u có sáu tr\u1ee5c \u0111\u1ed1i x\u1ee9ng<\/p>4\/ Hình ch\u1eef nh\u1eadt không có tâm \u0111\u1ed1i x\u1ee9ng Sai<\/span> vì hình ch\u1eef nh\u1eadt có tâm \u0111\u1ed1i x\u1ee9ng (\u0111ó là giao \u0111i\u1ec3m hai \u0111\u01b0\u1eddng chéo c\u1ee7a hình ch\u1eef nh\u1eadt)<\/p>V\u1eady có 1 câu kh\u1eb3ng \u0111\u1ecbnh \u0111úng<\/strong><\/p>\u0110áp án là 1 (Ngôi sao mang s\u1ed1 1)<\/strong><\/span><\/p>","type":"choose","extra_type":"star","time":"0","user_id":"132","test":"3","date":"2021-09-05 12:16:47","option_type":"txt","len":0},{"id":"7242","post_id":"4662","mon_id":"1158113","chapter_id":"1158130","question":"\u0110i\u1ec1n s\u1ed1 thích h\u1ee3p vào ch\u1ed7 tr\u1ed1ng.<\/strong><\/p>Tìm nh\u1eefng kh\u1eb3ng \u0111\u1ecbnh nào \u0111úng và l\u1ea7n l\u01b0\u1ee3t \u0111i\u1ec1n vào ô tr\u1ed1ng:<\/p>1.<\/strong> Hình vuông ABCD có tâm \u0111\u1ed1i x\u1ee9ng là \u0111i\u1ec3m A<\/p>2. <\/strong>MP là m\u1ed9t tr\u1ee5c \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình thoi MNPQ<\/p>3.<\/strong> Tâm \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình tròn là tâm c\u1ee7a hình tròn \u0111ó<\/p>4. <\/strong>M\u1ed7i \u0111\u01b0\u1eddng th\u1eb3ng không \u0111i qua tâm là m\u1ed9t tr\u1ee5c \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình tròn <\/p>Các kh\u1eb3ng \u0111\u1ecbnh \u0111úng là câu <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> và câu <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/strong><\/span><\/p>","options":"","correct":["[\"2\",\"3\"]"],"level":"3","hint":"\u0110i\u1ec1n s\u1ed1 th\u1ee9 t\u1ef1 c\u1ee7a câu kh\u1eb3ng \u0111\u1ecbnh \u0111úng vào ch\u1ed7 tr\u1ed1ng<\/p>","answer":"Xét t\u1eebng câu<\/p>1. Hình vuông ABCD có tâm \u0111\u1ed1i x\u1ee9ng là \u0111i\u1ec3m A :   Sai <\/span>(vì A là m\u1ed9t \u0111\u1ec9nh c\u1ee7a hình vuông ABCD mà tâm \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình vuông là giao \u0111i\u1ec3m c\u1ee7a hai \u0111\u01b0\u1eddng chéo ch\u1ee9 không ph\u1ea3i \u0111\u1ec9nh c\u1ee7a hình vuông.)<\/p>2. MP là m\u1ed9t tr\u1ee5c \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình thoi MNPQ:    \u0110úng<\/span> (vì m\u1ed7i \u0111\u01b0\u1eddng chéo là m\u1ed9t tr\u1ee5c \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình thoi và MP là m\u1ed9t \u0111\u01b0\u1eddng chéo c\u1ee7a hình thoi MNPQ)<\/p>3. Tâm \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình tròn là tâm c\u1ee7a hình tròn \u0111ó:    \u0110úng<\/span><\/p>4. M\u1ed7i \u0111\u01b0\u1eddng th\u1eb3ng không \u0111i qua tâm là m\u1ed9t tr\u1ee5c \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình tròn:   Sai (<\/span>vì m\u1ed7i \u0111\u01b0\u1eddng th\u1eb3ng \u0111i qua tâm<\/strong> là m\u1ed9t tr\u1ee5c \u0111\u1ed1i x\u1ee9ng c\u1ee7a hình tròn)<\/p>V\u1eady các kh\u1eb3ng \u0111\u1ecbnh \u0111úng là câu 2 và câu 3.<\/p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n là 2 ; 3<\/strong><\/span><\/p>","type":"blank_random","extra_type":"","time":"0","user_id":"132","test":"3","date":"2021-09-05 12:30:52"},{"id":"7243","post_id":"4662","mon_id":"1158113","chapter_id":"1158130","question":"Trong các hình sau, hình nào có tr\u1ee5c \u0111\u1ed1i x\u1ee9ng?<\/p><svg height=\"190\" width=\"400\"> <g><title><\/title><rect fill=\"#fff\" height=\"192\" id=\"canvas_background\" width=\"402\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_5\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><g id=\"svg_4\"> <path d=\"m94.88189,102.72074l2.76671,-11.06689l11.06689,-2.76673l-13.8336,13.83362l-69.1664,0l0,-83l83,0l0,69.16639\" fill=\"#fff\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <path d=\"m79.88189,139.72074l2.76671,-11.06689l11.06689,-2.76673l-13.8336,13.83362l-69.1664,0l0,-83l83,0l0,69.16639\" fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"1.5\" transform=\"rotate(180 52.215484619140625,98.22074127197266) \"><\/path> <path d=\"m60.66074,63.95678c14.01804,-57.29308 68.94116,0 0,73.66254c-68.94116,-73.66254 -14.01804,-130.95562 0,-73.66254z\" fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <\/g> <g id=\"svg_12\" stroke=\"null\" transform=\"rotate(90 328.3999633789063,78.85002136230472) \"> <g id=\"svg_10\" stroke=\"null\"> <path d=\"m253.5412,79.13436l74.41405,-39.80612l74.41405,39.80612l-74.41405,39.80612l-74.41405,-39.80612z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <rect fill=\"none\" fill-opacity=\"null\" height=\"62.67347\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"96.09374\" x=\"280.35311\" y=\"47.51328\"><\/rect> <\/g> <ellipse cx=\"328.39998\" cy=\"78.85002\" fill=\"none\" fill-opacity=\"null\" id=\"svg_11\" rx=\"74.99999\" ry=\"41.5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <g id=\"svg_19\" stroke=\"null\"> <g id=\"svg_15\" stroke=\"null\"> <path d=\"m128.3005,55.73079l16.45231,-48.63003l54.84104,0l16.45231,48.63003l-87.74566,0z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m137.91059,54.72173l32.90459,-23.84625l32.90466,23.84625l-12.56841,38.5842l-40.6724,0l-12.56844,-38.5842z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <\/g> <g id=\"svg_18\" stroke=\"null\" transform=\"matrix(-0.7976878881454468,0,0,-0.7420103445087136,402.7194173520147,339.6549255989279) \"> <path d=\"m171.01789,331.54031l20.625,-65.53821l68.75,0l20.62499,65.53821l-109.99999,0z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m183.06532,330.18041l41.24995,-32.13734l41.25005,32.13734l-15.75605,51.99955l-50.98786,0l-15.75609,-51.99955z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <\/g> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_22\" stroke=\"#ff0000\" stroke-width=\"0\" text-anchor=\"start\" x=\"48.9\" xml:space=\"preserve\" y=\"171.85\">1<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_23\" stroke=\"#ff0000\" stroke-width=\"0\" text-anchor=\"start\" x=\"175.9\" xml:space=\"preserve\" y=\"170.85\">2<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_24\" stroke=\"#ff0000\" stroke-width=\"0\" text-anchor=\"start\" x=\"311.9\" xml:space=\"preserve\" y=\"170.85\">3<\/text> <\/g> <\/svg><\/span><\/p>","options":["A\/<\/strong> Hình 3","B\/<\/strong> Hình 1","C\/<\/strong> Hình 2"],"correct":"1","level":"3","hint":"Ch\u1ecdn hình có tr\u1ee5c \u0111\u1ed1i x\u1ee9ng.<\/p>","answer":"Xét các hình:<\/p>+ Hình 1 không có tr\u1ee5c \u0111\u1ed1i x\u1ee9ng<\/p>+ Hình 2 không có tr\u1ee5c \u0111\u1ed1i x\u1ee9ng<\/p>+ Hình 3 có hai tr\u1ee5c \u0111\u1ed1i x\u1ee9ng<\/p><svg height=\"190\" width=\"400\"> <g><title><\/title><rect fill=\"#fff\" height=\"192\" 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><g id=\"svg_4\"> <path d=\"m94.88189,102.72074l2.76671,-11.06689l11.06689,-2.76673l-13.8336,13.83362l-69.1664,0l0,-83l83,0l0,69.16639\" fill=\"#fff\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <path d=\"m79.88189,139.72074l2.76671,-11.06689l11.06689,-2.76673l-13.8336,13.83362l-69.1664,0l0,-83l83,0l0,69.16639\" fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"1.5\" transform=\"rotate(180 52.215484619140625,98.22074127197266) \"><\/path> <path d=\"m60.66074,63.95678c14.01804,-57.29308 68.94116,0 0,73.66254c-68.94116,-73.66254 -14.01804,-130.95562 0,-73.66254z\" fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <\/g> <g id=\"svg_12\" stroke=\"null\" transform=\"rotate(90 334.3999633789063,82.85002136230472) \"> <g id=\"svg_10\" stroke=\"null\"> <path d=\"m259.5412,83.13436l74.41405,-39.80612l74.41405,39.80612l-74.41405,39.80612l-74.41405,-39.80612z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <rect fill=\"none\" fill-opacity=\"null\" height=\"62.67347\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"96.09374\" x=\"286.35311\" y=\"51.51328\"><\/rect> <\/g> <ellipse cx=\"334.39998\" cy=\"82.85002\" fill=\"none\" fill-opacity=\"null\" id=\"svg_11\" rx=\"74.99999\" ry=\"41.5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/ellipse> <\/g> <g id=\"svg_19\" stroke=\"null\"> <g id=\"svg_15\" stroke=\"null\"> <path d=\"m128.3005,55.73079l16.45231,-48.63003l54.84104,0l16.45231,48.63003l-87.74566,0z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m137.91059,54.72173l32.90459,-23.84625l32.90466,23.84625l-12.56841,38.5842l-40.6724,0l-12.56844,-38.5842z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <\/g> <g id=\"svg_18\" stroke=\"null\" transform=\"matrix(-0.7976878881454468,0,0,-0.7420103445087136,402.7194173520147,339.6549255989279) \"> <path d=\"m171.01789,331.54031l20.625,-65.53821l68.75,0l20.62499,65.53821l-109.99999,0z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m183.06532,330.18041l41.24995,-32.13734l41.25005,32.13734l-15.75605,51.99955l-50.98786,0l-15.75609,-51.99955z\" fill=\"none\" fill-opacity=\"null\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <\/g> <\/g> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_20\" stroke=\"#ff0000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-width=\"1.5\" x1=\"333.9\" x2=\"334\" y1=\"-0.15\" y2=\"180.85\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_21\" stroke=\"#ff0000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-width=\"1.5\" x1=\"276.9\" x2=\"381.9\" y1=\"82.85\" y2=\"83\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_22\" stroke=\"#ff0000\" stroke-width=\"0\" text-anchor=\"start\" x=\"48.9\" xml:space=\"preserve\" y=\"171.85\">1<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_23\" stroke=\"#ff0000\" stroke-width=\"0\" text-anchor=\"start\" x=\"175.9\" xml:space=\"preserve\" y=\"170.85\">2<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"18\" id=\"svg_24\" stroke=\"#ff0000\" stroke-width=\"0\" text-anchor=\"start\" x=\"311.9\" xml:space=\"preserve\" y=\"176.85\">3<\/text> <\/g> <\/svg><\/span><\/p>V\u1eady \u0111áp án \u0111úng là A\/ Hình 3<\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"132","test":"1","date":"2021-09-05 12:33:39","option_type":"txt","len":0}]}