题型:单选题
难度:0.85
引用次数:103
题号:17746630
在
中,点D、E、F分别在
、
、
上,且
,
,若
,则
的值为( )
![](https://img.xkw.com/dksih/QBM/2022/12/28/3140511771181056/3143585517764608/STEM/10a137eea6664726ba14b80baea29b72.png?resizew=186)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/ca14fa885a9d04f04e0418b49b118241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25eff69a4a0dc7a7ab183843303d333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d6ceed6e5a36193bcb5a557853dbee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c2cadb2f9ef2be808ce50cba73c61c9.png)
![](https://img.xkw.com/dksih/QBM/2022/12/28/3140511771181056/3143585517764608/STEM/10a137eea6664726ba14b80baea29b72.png?resizew=186)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-01-01 19:44:01
|
【知识点】 由平行截线求相关线段的长或比值解读
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【推荐2】如图,E是AB边上的中点,将△ABC沿过E的直线折叠,使点A落在BC上F处,折痕交边AC于点D,若△ABC的周长为12
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