如图,在Rt△ABC中,∠C=
,AC=3,BC=4,把Rt△ABC绕着点A逆时针旋转,使点C落在AB边的C′上,
的长度是( )
![](https://img.xkw.com/dksih/QBM/2021/3/2/2669200106545152/2672791864328192/STEM/4d9bd4cd-4111-4238-889d-c26d8b0cbddc.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c431cd12f858f0bc8dabb1d8c0b8e6.png)
![](https://img.xkw.com/dksih/QBM/2021/3/2/2669200106545152/2672791864328192/STEM/4d9bd4cd-4111-4238-889d-c26d8b0cbddc.png?resizew=163)
A.3 | B.4 | C.5 | D.![]() |
更新时间:2021-04-01 19:25:03
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名校
【推荐2】如图,将
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点![]() ![]() ![]() ![]() 而点 ![]() ![]() ∵ ![]() ∴四边形 ![]() |
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A.嘉淇推理严谨,不必补充 | B.应补充:且![]() |
C.应补充:且![]() | D.应补充:且![]() |
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