如图所示,在
中,
,D是
边上的点,
,垂足分别为E,F,
,则
的值为( )
![](https://img.xkw.com/dksih/QBM/2020/8/31/2539708583305216/2540457178857472/STEM/e2178c5dc9694d6fab4499dcdce7e562.png?resizew=172)
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dada4b823d9b13e0dd3cb1e029526cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51babe8e53e1d94346172d150e264efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/506bbc434d386f2d8e10607b70c56c18.png)
![](https://img.xkw.com/dksih/QBM/2020/8/31/2539708583305216/2540457178857472/STEM/e2178c5dc9694d6fab4499dcdce7e562.png?resizew=172)
A.5 | B.8 | C.10 | D.15 |
更新时间:2020-09-03 14:19:36
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【推荐1】如图,已知△ABC,AB=5,∠ABC=60°,D为BC边上的点,AD=AC,BD=2,则DC=( )
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【推荐1】如图,在Rt
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于
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