在
中,若∠B=90°,
则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20befb31b8e0deb0604491ab8ab7cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
A.30° | B.45° | C.60° | D.90° |
更新时间:2024-01-26 13:58:10
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名校
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