如图:在平行四边形ABCD中,AB=5,AD=10,BF=3,过BC的中点E作EF⊥AB,垂足为点F.连接DF,求DF的长( )
![](https://img.xkw.com/dksih/QBM/2021/4/8/2695165136396288/2701722934796288/STEM/24337e368d1f42e7802b25145ef8d181.png?resizew=228)
![](https://img.xkw.com/dksih/QBM/2021/4/8/2695165136396288/2701722934796288/STEM/24337e368d1f42e7802b25145ef8d181.png?resizew=228)
A.10 | B.9 | C.8![]() | D.7![]() |
更新时间:2021-05-07 02:07:27
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【推荐1】如图,在四边形ABCD中,AB=BC,∠ABC=∠CDA=90°,BE⊥AD于点E,且四边形ABCD的面积为4,则BE等于( ).
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【推荐1】如图,点
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【推荐2】如图,在Rt
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【推荐1】如图,
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