矩形的两边长分别是3和5,则它的对角线长是( )
A.4 | B.6 | C.![]() | D.7 |
更新时间:2017-07-27 00:50:27
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【推荐1】如图,四边形
中
,
,
,连接
,
的角平分线交
,
分别于点O、E,若
,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐2】如图,在矩形ABCD中,AB=4,AD=8,点E、点F分别在AD、BC上.若四边形EBFD为菱形,则EF的长为( )
![](https://img.xkw.com/dksih/QBM/2020/7/31/2517495633698816/2524345441329152/STEM/b7a527a5757946da8612d63a9659d703.png?resizew=176)
![](https://img.xkw.com/dksih/QBM/2020/7/31/2517495633698816/2524345441329152/STEM/b7a527a5757946da8612d63a9659d703.png?resizew=176)
A.2![]() | B.4 | C.2![]() | D.5 |
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