如图所示的作图痕迹作的是( )
![](https://img.xkw.com/dksih/QBM/2019/6/17/2227558671851520/2228522107502592/STEM/11a7848ee99746d888fe9f31869afa82.png?resizew=153)
![](https://img.xkw.com/dksih/QBM/2019/6/17/2227558671851520/2228522107502592/STEM/11a7848ee99746d888fe9f31869afa82.png?resizew=153)
A.线段的垂直平分线 |
B.过一点作已知直线的垂线 |
C.一个角的平分线 |
D.作一个角等于已知角 |
17-18七年级下·全国·课后作业 查看更多[4]
北师大版七年级数学下册习题:4.4《用尺规作三角形》(已下线)2018年5月20日 每周一测——《每日一题》2018年九年级数学二轮复习华师大版数学八年级上册第十三章第四节13.4.4经过一已知点作已知直线的垂线课时练习(已下线)【万唯原创】2019年安徽省中考数学-黑马卷逆袭特训-点对点十七
更新时间:2018-02-20 20:18:00
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【推荐1】如图,在
中,分别以点
和点
为圆心,大于
的长为半径作弧,两弧相交于
、
两点,连接
,交
于点
,以点
为圆心,
的长为半径作的弧恰好经过点
,以点
为圆心,
的长为半径作弧交
于点
,连接
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94c2e12db59e6c8b964b568396a5564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b5c0e0724cce5c25a88dca5e9220c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/417a00d6-915f-4022-904d-1a4d57fa4918.png?resizew=138)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,分别以线段AB的两端点A,B为圆心,大于
AB长为半径画弧,在线段AB的两侧分别交于点E,F,作直线EF交AB于点O.在直线EF上任取一点P(不与O重合),连接PA,PB,则下列结论不一定成立的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/eef167e7-9ab0-466d-90f1-b8aed80a0c15.png?resizew=112)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/eef167e7-9ab0-466d-90f1-b8aed80a0c15.png?resizew=112)
A.![]() | B.![]() | C.![]() | D.![]() |
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