1 . 求证:一组对边平行且一条对角线被另一条对角线平分的四边形是平行四边形.
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2023-10-12更新
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2卷引用:安徽省芜湖市无为第三中学2021-2022学年八年级下学期期中数学试题
2 . 如图,在
中,点
在边
上,
,连接
.若
,则
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b5d737d39e5ea753c6c824dd964751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5573a80f252879eda2db602b8ec04075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/3/5f2f1a39-a435-47a3-bbf9-c7f4602ef108.jpg?resizew=125)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 如图,
是
上一点,
交
于点
,
为
的中点,
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701a62e226858efaa3b8635a0e293ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc848db282db12957acad1e0983d2705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/53cb4b13-e9dc-459a-bad0-bb5071958e4d.png?resizew=144)
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2卷引用:安徽省黄山地区2023-2024学年八年级上学期期中数学试题
4 . 如图:在
中,
平分外角
,且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6344778ed1e75c1a99e2268468081867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4354365ca0929f8a606ed0bf341e4ca.png)
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2023-09-24更新
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3卷引用: 安徽省安庆市迎江区2022-2023学年八年级上学期期中数学试卷
安徽省安庆市迎江区2022-2023学年八年级上学期期中数学试卷 江苏省盐城市亭湖区初级中学2022-2023学年七年级下学期期末数学试题(已下线)第02讲 探索平行线的性质(2大考点+7种题型+强化训练)-【帮课堂】2023-2024学年七年级数学下册同步学与练(苏科版)
5 . 如图,
,若
,则
的度数为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c75d8581bb7b2a91795852acdc07d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8626be63a95a3c43f05406dd7b76b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4da6d3e09faf4535c0a7c7f09709f84.png)
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3卷引用:安徽省巢湖市第七中学2022-2023学年七年级下学期期中数学试题
安徽省巢湖市第七中学2022-2023学年七年级下学期期中数学试题天津市天津外国语大学附属中学滨海校区2023-2024学年七年级下学期期中数学试题(已下线)专题2.15 平行线的性质(分层练习)(提升练)-2023-2024学年七年级数学下册基础知识专项突破讲与练(北师大版)
6 . 下列说法错误的是( )
A.内错角相等 | B.直线外一点与直线上各点连接的线段中,垂线段最短 |
C.对顶角相等 | D.同一平面内,两条直线如果不相交,那么一定平行 |
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7 . 如图,直线
,在
上任选一点E,将一直角三角板直角顶点放在E处,
,当
,此时
的大小是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8186faae25bffc27732692d36dbc437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbbc2c51f78ff2a999763e05ea24d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6a23d521606a35298bbf147f7f830c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:安徽省宿州市砀山铁路中学2022-2023学年七年级下学期期中数学试题
安徽省宿州市砀山铁路中学2022-2023学年七年级下学期期中数学试题(已下线)专题04 平行线的判定与性质(八种考法)-【好题汇编】备战2023-2024学年七年级数学下学期期中真题分类汇编(北师大版)2024年山东省菏泽市曹县部分中学中考数学一模试题
8 . 如图,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc310194575262fb45352c2fbc19868.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a4352562ae8aa968014fd0d931b677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc3ef6a72ecee9efdca1f447fa243d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc310194575262fb45352c2fbc19868.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/ca2f9016-440e-4406-a4ac-fa62b1e03b83.png?resizew=146)
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9 . 如图,
,将直角三角板
(其中
)按图示放置,点A在
上,点B在
上,若
平分
,则
的度数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947aed0181a8c0bd81c6ebeba8d1ddc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab926d89b65f26c12e3da73ef1e5cf68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c35b4fb9ef7d9345043bc3d34af11e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33149bfd164e70c6743fa0c97e9a897f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-09-11更新
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安徽省巢湖市第七中学2022-2023学年七年级下学期期中数学试题陕西省西安交大附中浐灞右岸学校2023-2024学年八年级上学期开学考试数学试题(已下线)七年级下册期中模拟-【好题汇编】备战2023-2024学年七年级数学下学期期中真题分类汇编(人教版,湖北专用)
10 . 如图,BD平分
,
,垂足为点D,
.求证:
是等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650c6c818df102a83ce5159e3208d01a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436f108fd4921dae15ecff19270237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
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2023-09-07更新
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2卷引用:安徽省宿州市砀山县2023-2024学年八年级下学期期中数学试题