20-21八年级上·全国·期中
1 . 如图,在△ABC中,BC的垂直平分线分别交BC,AB于点D、E,BE=7,则CE的长是( )
![](https://img.xkw.com/dksih/QBM/2020/11/4/2585769592856576/2585864952586240/STEM/dfd0e45265dc43e8810cc18310dc21b8.png?resizew=169)
![](https://img.xkw.com/dksih/QBM/2020/11/4/2585769592856576/2585864952586240/STEM/dfd0e45265dc43e8810cc18310dc21b8.png?resizew=169)
A.5 | B.6 | C.7 | D.8 |
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2 . 在△ABC中,AB=AC,AB的垂直平分线与AC所在直线相交所得的锐角为40°,∠B的度数为( )
A.20°或70° | B.30°或60° | C.25°或65° | D.35°或65° |
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3 . 如图,
是
的中点,
是
的垂直平分线,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42acd3ee01d9f843a8579ffb0b7d9d82.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86d4e6a9a46dda870c1776f5eb787a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42acd3ee01d9f843a8579ffb0b7d9d82.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581698060058624/2585511858692096/STEM/3f80d91a0f6040c7875d5a2ea26ab3ca.png?resizew=198)
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4 . 如图,
于点
且
,已知
,
,
、
是
、
上的动点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b7513e09cccf40c3a483064b97e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f8939f8c274cb26a8a6a5fa2469087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/e95e98288acdd662de9a3dae1fcf0368.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581698060058624/2585511858700288/STEM/8e30c768c7e84a818b66439c7c393b09.png?resizew=169)
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名校
5 . 如图,
中,边
的垂直平分线交
于点
,已知
,
,
,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581698319040512/2585189123440640/STEM/79f7c00b-b9b7-450b-a491-452b5165cb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f186ea827f7becafd1ac4955e22c6812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db5e1441a49e782ff0ef46e776cde06a.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581698319040512/2585189123440640/STEM/79f7c00b-b9b7-450b-a491-452b5165cb7e.png)
A.18 | B.15 | C.10 | D.11 |
您最近一年使用:0次
2020-11-03更新
|
163次组卷
|
2卷引用:浙江省杭州市余杭区2020-2021学年八年级10月质量检测数学试题
6 . 在
中,
,
垂直平分
交
于点
,交
于点
(点
不与点
重合),点
在边
上(点
不与点
重合),点
在直线
上,且
.
(1)如图1,当
时,直接写出
与
的数量关系;
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581434351566848/2585179108507648/STEM/7a1cdc58-1b2e-497e-a882-2a5c213ef560.png)
(2)如图2,当
,猜想
与
的数量关系,并说明理由.
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581434351566848/2585179108507648/STEM/f498444a-1b9b-4f6f-ae7e-9ab6d84369fa.png)
(3)若
,
,
,直接写出线段
的长.
![](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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff41f36f00008f34a6c57aa9520d826d.png)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b173ac8cc4ac4f1c9e1daaa605fbb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581434351566848/2585179108507648/STEM/7a1cdc58-1b2e-497e-a882-2a5c213ef560.png)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581434351566848/2585179108507648/STEM/f498444a-1b9b-4f6f-ae7e-9ab6d84369fa.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec2daeb3938525290d6683f72edd3f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2c95428bc23c61c85c33a9980d41d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581434351566848/2585179108507648/STEM/1c764a86-0b78-49f8-b7a2-22a78dd6671a.png)
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20-21九年级上·江西南昌·开学考试
7 . (1)因式分解:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8754604ecd189049dc6e56c466d42087.png)
(2)如图,在
中,
,
,
的垂直平分线交
于点
,交
于点
,连接
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8754604ecd189049dc6e56c466d42087.png)
(2)如图,在
![](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/5a86e66f3705e9f6c9007a7e7f27bcdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed24d7acba0b3a7ebf4d520296424a3.png)
![](https://img.xkw.com/dksih/QBM/2020/11/3/2584833299619840/2585059424043008/STEM/5c8700d95133467da068b60c6c395768.png?resizew=131)
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8 . 如图,在
中,
,
,
的垂直平分线交
于
,交
于
,且
,则
的长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/ff3fc1ebc23df8d05cfae3b4e22aa6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581698344689664/2585202252668928/STEM/0793570e8ef84dd4954aa678fa556fec.png?resizew=173)
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名校
9 . 如图,在
中,
的垂直平分线
交
的平分线
于E,如果
,
,那么
的大小是( )
![](https://img.xkw.com/dksih/QBM/2020/11/3/2584880796844032/2584913045323776/STEM/569bcf2f870947af8856f05f29487450.png?resizew=128)
![](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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79340a9e0809edede5c13774630293ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db866ecc0c098bfc32ec8a43b65bdd58.png)
![](https://img.xkw.com/dksih/QBM/2020/11/3/2584880796844032/2584913045323776/STEM/569bcf2f870947af8856f05f29487450.png?resizew=128)
A.24° | B.30° | C.32° | D.36° |
您最近一年使用:0次
2020-11-03更新
|
842次组卷
|
21卷引用:2016届山东济南历城区九年级二模数学试卷
2016届山东济南历城区九年级二模数学试卷2015-2016学年山东省济南市商河县八年级下期末数学试卷人教版八年级上册 13.1 轴对称同步测试福建省2018年八年级数学北师大版下册同步教学:第一章测评浙教版2017-2018学年八年级数学上册习题:第1章 三角形的初步知识【区级联考】浙江省宁波市镇海区2017-2018学年八年级(上)期末数学试题北师大版八年级数学下册 第1-4章 综合测试【校级联考】浙江省杭州市三校2018-2019学年八年级第一学期期中考试数学试题北师大版八年级下册 1.3 线段的垂直平分线(1) 同步测试题上海市浦东新区青浦东方中学2019-2020学年九年级上学期期中数学试题浙江省金华市婺城区南苑中学2019-2020学年八年级上学期期中数学试题(已下线)【新东方】初中数学744【2019年】【初二上】上海市青浦区东方中学2019-2020学年八年级上学期期中数学试题(已下线)【新东方】 【2019】【初二上】【期中考】【NY】【数学】【吴靓收集】【XXX录入】(已下线)广西南宁市三美学校2020--2021学年下学期八年级数学模拟试题(一)四川省雅安市雅安中学2021-2022学年八年级下学期4月月考数学试题(已下线)第19章 几何证明(典型题专练)-2021-2022学年八年级数学上学期期中期末考试满分全攻略(沪教版)(已下线)专题13.1 轴对称(专项训练)-2022-2023学年八年级数学上册《同步考点解读·专题训练》(人教版)(已下线)专题1.4 线段的垂直平分线(专项训练)-2022-2023学年八年级数学下册《同步考点解读·专题训练》(北师大版)2023年河北省沧州市青县第二中学中考数学模拟试卷黑龙江省大庆市东方学校2022-2023学年八年级上学期开学考试数学试题
10 . 如图:在
中,
,
的垂直平分线
交
于
,连
,若
的周长为
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581403439759360/2585138491629568/STEM/ca306ebc36a14b9ea4e2b628b26e0135.png?resizew=133)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2f2da8428a8f3c8e3dd9d56ff01e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba05eed0b25ee0ee6b0e7fcd09fda1ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e60fbe6820130fb20abc555a94b5ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2020/10/29/2581403439759360/2585138491629568/STEM/ca306ebc36a14b9ea4e2b628b26e0135.png?resizew=133)
A.![]() | B.![]() | C.![]() | D.![]() |
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