如图,将△AOB绕点O按顺时针方向旋转45°后得到△COD,若∠AOB=27°,则∠BOC的度数是( )
![](https://img.xkw.com/dksih/QBM/2018/6/6/1961512473706496/1966866914574336/STEM/4dac237cee9743b4bb1cb83182c0dd51.png?resizew=92)
![](https://img.xkw.com/dksih/QBM/2018/6/6/1961512473706496/1966866914574336/STEM/4dac237cee9743b4bb1cb83182c0dd51.png?resizew=92)
A.18° | B.27° | C.45° | D.72° |
更新时间:2018-06-14 23:32:01
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【推荐1】如图,在
中,
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【推荐2】经过以下变化后所得到的三角形不能和
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【推荐1】如图,直角坐标系中,
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【推荐2】如图,在
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【推荐1】如图,将△ABC绕着点C顺时针旋转50°后得到△A′B′C,若∠A=40°,∠B=110°,则∠BCA′的度数是( )
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【推荐2】如图,把
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