2011·江苏南京·中考模拟
1 . 如图,▱ABCD中,∠ABC=60°,AB=4,AD=8,点E,F分别是边BC,AD的中点,点M是AE与BF的交点,点N是CF与DE的交点,则四边形ENFM的周长是______ .
![](https://img.xkw.com/dksih/QBM/2019/1/27/2127621715181568/2130125002842113/STEM/682e33bd4e324c4986ed7cdd8ee9727e.png?resizew=118)
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5卷引用:2011年南京市下关区秦淮区沿江区中考数学一模试卷
(已下线)2011年南京市下关区秦淮区沿江区中考数学一模试卷(已下线)2011届上海市奉贤区4月中考数学模拟试卷(已下线)2011年江苏省南京市下关区秦淮区沿江区中考模拟数学卷北师大版数学八年级下册第6章平行四边形测试卷贵州省毕节市织金县2018-2019学年八年级下学期期末考试数学试题
2011·山东潍坊·中考真题
真题
2 . 已知正方形
的边长为
,两条对角线
、
相交于点
,
是射线
上任意一点,过
点分别作直线
、
的垂线
、
,垂足为
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/c74a2cab-6d29-4918-8e36-f5f563b4cb92.png?resizew=282)
(1)如图
,当
点在线段
上时,求
的值;
(2)如图
,当
点在线段
的延长线上时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/c74a2cab-6d29-4918-8e36-f5f563b4cb92.png?resizew=282)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bce17597a7a6a83cd4287d424db6b56.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa56da199aa09d9462a64cd7e979347.png)
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2010·安徽芜湖·中考模拟
名校
3 . 如图,在矩形
中,
于![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640fabb13c3d07c559c350af7e54027d.png)
且
则
的长度是( )
![](https://img.xkw.com/dksih/QBM/2011/11/18/1573282302894080/1573282376826880/STEM/5a509c5434e544afb25c37a787439487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535a65c61f47d2b893706d4bc3499e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640fabb13c3d07c559c350af7e54027d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9c5b157469e4282948eafb8c5b58f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ffaea5d9fd350da1c603b252eb2c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2011/11/18/1573282302894080/1573282376826880/STEM/5a509c5434e544afb25c37a787439487.png)
A.3 | B.5 | C.![]() | D.![]() |
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5卷引用:【校级联考】山东省德州市武城县育才实验学校等县内八校2018-2019学年八年级下学期第一次月考数学试题
4 . 如图,已知DE是直角梯形ABCD的高,将△ADE沿DE翻折,腰AD恰好经过腰BC的中点,则AE:BE等于( )
![](https://img.xkw.com/dksih/QBM/2015/3/2/1573803199578112/1573803205681152/STEM/d6993673c250437695d7f64ea853c1bb.png?resizew=223)
![](https://img.xkw.com/dksih/QBM/2015/3/2/1573803199578112/1573803205681152/STEM/d6993673c250437695d7f64ea853c1bb.png?resizew=223)
A.2:1 | B.1:2 | C.3:2 | D.2:3 |
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3卷引用:2015年课时同步练习(浙教版)八年级上2.1图形的轴对称
2015年课时同步练习(浙教版)八年级上2.1图形的轴对称(已下线)《2018-2019学年同步单元双基双测AB卷》【浙教版】八上 月考卷A卷江苏省苏州市太仓市双凤中学2018-2019学年八年级下学期期末数学试题