1 . 如图所示,某登山队在山脚
处测得山顶
的仰角
,沿倾斜角为30°的斜坡前进1000米后到达
处,又测得山顶的仰角
,则山高
为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/27836f3b-166a-4300-a96b-14d6dd95399f.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a84b65d912559083735708e7f7a6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2bbe1b28cb38a4db8480846b18584a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/27836f3b-166a-4300-a96b-14d6dd95399f.png?resizew=142)
A.![]() | B.1000米 |
C.![]() | D.![]() |
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