2010·四川绵阳·中考真题
真题
1 . 数学课上,李老师出示了这样一道题目:如图
,正方形
的边长为
,
为边
延长线上的一点,
为
的中点,
的垂直平分线交边
于
,交边
的延长线于
.当
时,
与
的比值是多少?
经过思考,小明展示了一种正确的解题思路:过
作直线平行于
交
,
分别于
,
,如图
,则可得:
,因为
,所以
.可求出
和
的值,进而可求得
与
的比值.
(1)请按照小明的思路写出求解过程.
(2)小东又对此题作了进一步探究,得出了
的结论.你认为小东的这个结论正确吗?如果正确,请给予证明;如果不正确,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4700db4caa77fdcfa7a2e19bc7dc5781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
经过思考,小明展示了一种正确的解题思路:过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5256200b9a4abc61456e47f4567d0ab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ecbd1d80324aa86c222d5fe79fc9c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5da44bd1537984418603aca93fc2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/e0b850d8-42c7-4867-ac80-23284bc4f2c1.png?resizew=284)
(1)请按照小明的思路写出求解过程.
(2)小东又对此题作了进一步探究,得出了
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d191e1c2577c5f1375777676ce54111.png)
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10卷引用:2011-2012学年江苏兴化板桥初级中学八年级下学期期末考试数学卷
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名校
2 . 已知,如图,在菱形ABCD中.(1)分别以C,D为圆心,大于
长为半径作弧,两弧分别交于点E,F;(2)作直线EF,且直线EF恰好经过点A,且与边CD交于点M;(3)连接BM.根据以上作图过程及所作图形,判断下列结论中错误 的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b840be5852709e18ea985954545e78d.png)
A.∠ABC=60° | B.如果AB=2,那么BM=4 |
C.BC=2CM | D.![]() |
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15卷引用:浙江省宁波市慈溪市2019-2020学年八年级下学期期末数学试题
浙江省宁波市慈溪市2019-2020学年八年级下学期期末数学试题北京市和平街一中2020-2021学年八年级下学期期中考试数学试题河南省驻马店市西平县多校联考2023-2024学年八年级下学期期中考试数学试题河南省驻马店市西平县2023-2024学年八年级下学期期中数学试题2020年北京市门头沟区九年级下学期一模数学试题云南省昆明三中、滇池中学2019-2020学年九年级7月联考数学试题2021年吉林省长春市中考数学评价与检测试卷(四)2021年四川省达州市开江县九年级学生适应性教学质量监测数学试题2021年内蒙古鄂尔多斯市准格尔旗九年级模拟考试(二模)数学试题北京市第十三中学2021-2022学年九年级下学期开学数学测试题2021年山东省济南市历城区中考数学二模试卷 (已下线)包头卷A-2022年中考数学模拟考场仿真演练卷山东省淄博市张店区山东淄博新元学校2020-2021学年九年级下学期期中数学试题2023年贵州省贵阳市花溪区中考二模数学试题2023年吉林省长春市榆树市市北片五校中考二模数学试题
3 . 如图,
是
的角平分线,
、
分别是
和
的高,则下列结论:
①
垂直平分
;②
;③
;④
为
的中点.其中一定正确的是_______________ (填序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b731c2724383ea2a4432ef5ef06caf8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1f168a1df4051c2c391e4965bd55dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/30/1a64dfd1-134f-41a3-9378-fab2f6eace03.png?resizew=187)
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4卷引用:广东省潮州市潮安区2018-2019学年八年级上学期期中数学试题
广东省潮州市潮安区2018-2019学年八年级上学期期中数学试题(已下线)专题13.5 线段垂直平分线(分层练习)-2023-2024学年八年级数学上册基础知识专项突破讲与练(人教版)(已下线)专题2.5 线段的轴对称性(分层练习)-2023-2024学年八年级数学上册基础知识专项突破讲与练(苏科版)吉林省松原市乾安县2023-2024学年八年级上学期期中数学试题
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4 . 如图,在
中,D是
的中点,
,
,延长
至点M,使得
,连接
并延长,交
的延长线于点N,现给出以下结论:
①
;
②
;
③
;
④
.
其中正确的是__ .(写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a26cd396cc0c512f544d37c00018749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/21/8e336c55-4c39-45dd-b1b9-135a45b2e67c.png?resizew=201)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594c95ec1d027b7fa228f341d0b253a3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa42f85c3ea78b90e43d548f89f0d200.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59d1481a14919877fe8a13507ec2428.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc35792d7e1ad4c8f670d975db45fe2e.png)
其中正确的是
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6卷引用:专题13.3 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(华东师大版)
(已下线)专题13.3 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(华东师大版)(已下线)专题13.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(人教版)(已下线)专题2.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(苏科版)(已下线)专题2.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(浙教版)(已下线)专题15.2 等腰三角形的性质与判定【十大题型】-2023-2024学年八年级数学上册举一反三系列(沪科版)福建省漳州市芗城区漳州一中2022-2023学年七年级下学期期末数学试题
23-24八年级·江苏·假期作业
5 . 在
中,
分别为
边上的高,
相交于点F,连接
.下列结论:(1)
;②
;③
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ac3afa9599785ec14e41611c53e182.png)
,④若
,则
的周长等于
的长.正确的是______ (填序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f624831c60eb635ba851676fa4008632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1005d9def461d00556e3aced70ea2f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0dec4c2e07227510aec6d2878903242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49c8ec9b6203e5345fb39978ff1d00c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98de02d1d5b7ac04bce54be393218922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3deee661336684541870cef3da7dcbd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ac3afa9599785ec14e41611c53e182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f808b731b7304a617be76430f57c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d6b559fefc77c2bba970ca5e79a201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7b7be09862e90dd0065ec7b712e024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/22/999191fb-2256-4129-b2de-cfac6015a60a.jpg?resizew=131)
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6 . 如图,在
中,
,
于点D,则下列四个结论中:①线段
上任意一点到点B、点C的距离相等;②线段
上任意一点到
的距离与到
的距离相等;③若点Q为
的中点,则
的面积是
面积的
;④若
,则
.其中正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a1eda00fc2d64ce3a42004b24adf00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32436704a722d5e568ff5c175bf3c662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e79f9e1e194eacf3ce73a8d8fcbc0d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/16/aea65e30-ada0-4848-bd9d-6cbfa86f53cb.png?resizew=119)
A.①②③ | B.①②④ | C.①③④ | D.②③④ |
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2卷引用:广东省阳江市阳东区2020-2021学年八年级上学期期中数学试题
7 . 如图,
中,
分别是
上的点,作
,垂足分别是
,连接
,若
,则下面四个结论中:①
;②
;③
;④
垂直平分
,正确结论的序号是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887721a843b2dc8e947cc42d09868e33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4dc3f7d716ea4a9f001a4b0ea7cf5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530840ec565f8b0db2aedb804ff985f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cce6cac0fdd4b1a434af8bcaec8fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fa3e09a6fc39f64ed5b93eb4382ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9ccbcb773c5bd43d1fd59ad4778c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d05e0357f773ac8b6eda684004563fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a63f351da825a7eb11e034b66a9fd34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cce6cac0fdd4b1a434af8bcaec8fef.png)
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13卷引用:2015-2016学年江苏省扬州市竹西中学八年级上学期期末数学试卷
2015-2016学年江苏省扬州市竹西中学八年级上学期期末数学试卷人教版数学八年级上册 第12章《全等三角形》复习测试题2018-2019学年八年级上册(人教版)数学:第11-13章章末测试卷【校级联考】安徽省安庆市望江县2018-2019学年八年级上学期期末考试数学试题北师大版八年级数学下册 1.4 角平分线 课时作业青海省海东市互助县第四中学2018-2019学年北师大八年级(上)期末数学试卷沪科版数学八年级上册 15.2 线段的垂直平分线山东省潍坊市寿光市2021-2022学年八年级上学期期末数学试题山东省潍坊市诸城市2021-2022学年八年级上学期期末数学试题山东省聊城市东昌府区2020-2021学年八年级上学期期末数学试题安徽省六安市金寨县2022-2023学年八年级上学期期末质量监测数学试卷第5章 几何证明 单元测试 2022-2023学年青岛版八年级数学上册(已下线)专题04 勾股定理及逆定理的15种常考题型归类【好题汇编】-备战2023-2024学年八年级数学下学期期末真题分类汇编(安徽专用)
8 . 如图,四边形
的对角线
相交于点O,
.下列结论:①
;②
;③
;④
;⑤四边形
是轴对称图形.其中所有正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d578394cd8e4d7a705599269c512960.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/ecd120d2-9b99-4ed4-adcd-ad4ac61c59d6.png?resizew=121)
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名校
9 . 如图,在
中,
,
于点
,
的平分线交
于点
,
交
于点
,连接
.有下列结论:①
;②
;③
平分
;④
.其中,所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee73452ee4d5437f1399f1235b95e55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/5cd4f450-6f3d-4a60-af6f-a4743024fa65.png?resizew=141)
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2023-03-19更新
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157次组卷
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3卷引用:辽宁省阜新市细河区2022-2023学年八年级上学期期末数学试题
10 . 如图,在
中,
,
,
,
,以
为圆心,任意长为半径画弧分别交
,
于点
,
,再分别以
,
为圆心,大于
的长为半径画弧,两弧交于点
,连接
并延长交
于点
,点
是
边上一点,连接
.则有下列结论:①
是
的平分线;②
为直角三角形;③点
在
的垂直平分线上;④
;⑤
;其中正确结论的序号有 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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