如图,
中,
,利用尺规分别以A,B为圆心,大于
的长为半径画弧相交于两点,连接交点,交
于点D,下列说法不一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-06-13 12:19:04
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【推荐1】如图,在
中,
,
,以点C为圆心,
长为半径作弧交
于点D,分别以点A和点D为圆心,大于
长为半径作弧,两弧相交于点E,作直线
,交
于点F,则
的度数是( )
![](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/5bd35f055165577f901117038a8cc609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cb1a4c5afb590c7c17de14d15651e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752fa646a2d9cfca34001748445301c9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
【推荐2】已知线段AB,用尺规作它的垂直平分线.作图步骤如图,下列正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/931243b7-b571-411c-8fcf-812c9aa3bb02.png?resizew=647)
A.a,b,c,d均无限制 | B.a与b的长可以不相等 |
C.a与d的长必须相等 | D.c与d的长必须相等 |
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【推荐1】如图,在
中,
,
,
平分
交
于
,
于
,下列结论不正确的是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/d52b1024-cbb2-4ef3-9692-b7bd795aa1fc.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d00f4651b343dd8f9060c6460f0c955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4151e948feebdf7b91fbe739feafa9bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/10/d52b1024-cbb2-4ef3-9692-b7bd795aa1fc.png?resizew=177)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】如图,在
中,
,
是中线,
,则下列说法:①
平分
,②
,③
,④
,其中正确的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/b0fc36e5-3ed2-462f-87e3-1a921470b44a.png?resizew=153)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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A.1 | B.2 | C.3 | D.4 |
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【推荐1】如图,
、
分别是
的高,M为
的中点,
,
,则
的周长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/2fdc4470-13d1-4756-82ae-f1043869cf54.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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