1 . 如图所示,
为
的直径,点C、D为
上任意两点,连结
、
、
、
,且
与
交于点E,若弧
等于弧
,则下列判断错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/69052c03-ff4b-4e0b-b801-3c29df2b3af3.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/69052c03-ff4b-4e0b-b801-3c29df2b3af3.png?resizew=137)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 在
中,
,
平分
交
于点
交
于点
,
交
于点
,有以下结论:①四边形
一定是平行四边形;②连接
所得四边形
一定是平行四边形;③保持
的大小不变,改变
的长度可使
成立;④保持
的长度不变,改变
的大小可使
成立,其中所有的正确结论是:________ .(填序号即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a45d141f3e1e3f46ddc63fdc5ce68c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18574218da07c7acb52275b2a29d941b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2222eec085423ac1c57089962f3287f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bdae3d30abf70515bdbd45f9d0c380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c114237f609956017bc72f4971d5b375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c114237f609956017bc72f4971d5b375.png)
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2024-03-22更新
|
193次组卷
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3卷引用: 江苏省泰州中学附属初级中学2023-2024学年八年级下学期3月月考数学试题
3 . 如图,已知在
中,
,点
是
边的中点,分别以
,
为圆心.大于线段
长度一半的长为半径还画圆弧,两弧在直线
上方的交点为
,直线
交
于点
.连结
,则下列结论中:①
;②
;③
平分
;④
.一定正确的是_________ (填写正确选项的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.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/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c79c4d655d22f6b3e9826adc6df810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c989205a44f6b6f5b9b953b7cfabc58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd1bc0388e7fad3e849ca39c67f5034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326a6b980171b22f89721798e76837ed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/22/6b22368d-587f-4365-8707-c8df6f3719c4.png?resizew=191)
您最近一年使用:0次
2022-07-20更新
|
47次组卷
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2卷引用:四川省巴中市巴州区第三中学2023-2024学年八年级上学期11月月考数学试题
4 . 如图,E、F、G、H分别是BD、BC、AC、AD的中点,且AB=CD,下列结论中:①GH∥DC;②EG∥AD;③EH=FG;④当∠ABC与∠DCB互余时,四边形EFGH是正方形.正确的有______ (填上所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/2021/10/28/2838950069436416/2901446261301248/STEM/244bfee5-7a67-4a59-aee0-034de7955427.png?resizew=171)
您最近一年使用:0次
20-21八年级上·江西南昌·阶段练习
5 . 如图,在
中,
,G为AD的中点,延长BG交AC于点E,且满足
,F为AB上一点,且
于点H.下列结论:①线段AG是
的角平分线;②BE是
的中线;③线段AE是
的边BG上的高;④
与
的面积相等.其中正确说法的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b62ce0cbffa4758c7a0e6fb7ca4d24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc727c642cbc2181476b7dd8eca471e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc727c642cbc2181476b7dd8eca471e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a236a6ef0151937b01e3678826e3675.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/71cbbc10-fb72-4827-bb6b-8962272828e2.png?resizew=187)
您最近一年使用:0次
名校
6 . 已知:如图所示:点D,E分别是
的边
的中点.
求证:
,且
.
证明:延长
到点F,使EF=DE,连接
.∵
,∴四边形
是平行四边形,接着以下是排序错误的证明过程:①∴
;②
.即
;③四边形
是平行四边形;④
,且
.则正确的证明顺序应是( )
![](https://img.xkw.com/dksih/QBM/2022/12/17/3132770173321216/3141202387443712/STEM/f234c04730d34c219cc65a9b16e57a5d.png?resizew=192)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5dc62e10004e73908091338362917da.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d021981c03e75b1a246d899dcc64656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950e82a0f9712457f2dd9f8a93f8a217.png)
证明:延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240537cd6eeb0a59e25dd46b8862f073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d0416d5bb09792ef8f90dacb6fbc99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a5a2949b3d520ed03d57126c7d4d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9baeb52b76c9330f21b5cb771049e694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af897d6c002b65c63c8a66c52a4ce95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f37ad8ed372ccd0c79542019c949da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d15047493914a7de990b3b905875436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d021981c03e75b1a246d899dcc64656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950e82a0f9712457f2dd9f8a93f8a217.png)
![](https://img.xkw.com/dksih/QBM/2022/12/17/3132770173321216/3141202387443712/STEM/f234c04730d34c219cc65a9b16e57a5d.png?resizew=192)
A.①→③→②→④ | B.①→③→④→② | C.②→③→①→④ | D.②→③→④→① |
您最近一年使用:0次
2022-12-29更新
|
370次组卷
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9卷引用:广西壮族自治区百强名校 南宁市第二中学2022-2023学年九年级上学期第三次月考数学试题
广西壮族自治区百强名校 南宁市第二中学2022-2023学年九年级上学期第三次月考数学试题河北省廊坊市安次区2021-2022学年八年级下学期期末数学试题(已下线)专题18.6 平行四边形的判定(基础篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(人教版)(已下线)专题9.29 中心对称图形——平行四边形(全章复习与巩固)(基础篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(苏科版)(已下线)专题4.12 平行四边形的判定定理(基础篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(浙教版)(已下线)专题4.5 三角形的中位线-【帮课堂】2022-2023学年八年级数学下册同步精品讲义(浙教版)(已下线)专题19.9 平行四边形的判定(基础篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(沪科版)(已下线)黄金卷05-【赢在中考·黄金8卷】备战2023年中考数学全真模拟卷(河北专用)(已下线)专题6.6 平行四边形的判定(基础篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(北师大版)
名校
7 . 如图,将三角形纸片
沿
折叠,使点
落在
边上的点
处,且DE//BC,则结论:①△
是等腰三角形;②
;③四边形
是菱形;④
.其中正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950e82a0f9712457f2dd9f8a93f8a217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08c14e87a2bcf7090eab2fea73667d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d77e4666fd58a219cc44734cb3d002d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/24/3fea21d9-757e-4993-a8af-eed10dfaa67d.png?resizew=145)
A.①②③ | B.①②④ | C.①③④ | D.②③④ |
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2020-08-18更新
|
146次组卷
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3卷引用:浙江省杭州市临平区2021-2022学年八年级下学期数学五月月考试题
真题
8 . 如图,在△ABC中,AB=AC,D、E、F分别为AB、BC、AC的中点,则下列结论:①△ADF≌△FEC;②四边形ADEF为菱形;③
.其中正确的结论是____________ .(填写所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8fa5312821bcba9a09132edaaa3ba1.png)
![](https://img.xkw.com/dksih/QBM/2018/8/16/2011765911609344/2012610693218304/STEM/2bb53980965043788461c7232e195aef.png?resizew=81)
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6卷引用:四川省成都市天府第七中学2021-2022学年九年级上学期12月月考数学试题