如图,在
中,
,
,
,用尺规作图,分别以点A和点C为圆心,以
长为半径作弧,两弧相交于点M和N,作直线
交
于点E,交
于点D,连接
,点F是
的中点并连接
,则
的长是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-04-16 09:42:02
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【推荐2】如图,在⊙O中,AB是直径,CD是弦,AB⊥CD,下列结论错误的是( )
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