若
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da4bf7c49454b97c3073ad755063db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be13d5d1e4d69f454de881f43bf5423c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667e7d95e4acce4a845a24e2ce217840.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2024-01-29 00:56:26
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【推荐1】把8.32°用度、分、秒表示正确的是( )
A.8°3′2″ | B.8°30′2″ | C.8°19′12″ | D.8°19 ′20″ |
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【推荐2】如图,将一个三角板60°角的顶点与另一个三角板的直角顶点重合,
,则
的余角是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
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【推荐2】已知
,
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,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55ea82945f43040c3e5243d2e3cbbfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fedc1d2037e902f5d98ed3bf73e4a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658e6165a5463a932ca29070280c0fa8.png)
A.![]() | B.![]() | C.![]() | D.∠1=∠2 |
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