如图,在高出海平面100
的悬崖顶
处,观测海平面上一艘小船
,测得它的俯角为30°,则船与观测者之间的水平距离约为________ .(精确到1
.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2019/7/15/2247261698293760/2248633744187392/STEM/a7a386b8ef064b5aa69590ba1ee18ff9.png?resizew=166)
更新时间:2018-07-21 15:52:53
|
【知识点】 仰角俯角问题(解直角三角形的应用)
相似题推荐
填空题
|
适中
(0.65)
【推荐1】如图,从一运输船的点A处观测海岸上高为41m的灯塔BC(观测点A与灯塔底部C在一个水平面上),测得灯塔顶部B的仰角为35°,则点A到灯塔BC的距离约为____ (精确到1cm).
![](https://img.xkw.com/dksih/QBM/2017/10/21/1799982956675072/1799995337859073/STEM/a502885221dc46fb8ec6b44965561a3f.png?resizew=149)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,无人机在塔、树上方
处悬停,测得塔顶
的俯角为
,树顶
的俯角为
,树高
为12米,无人机竖直高度
为60米,
、
在一条直线上,且
点到塔底
的距离比到树底
的距离多8米,则塔高
的值为______ 米.(结果带根号.参考数据:
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d00b74eb4c50bf861e6ff0edf137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca2a99292b7456af4515dd0ca68bd34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94db197f1ac6b6e1184e677f8f7b8d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6068e49ccc9c5ad6a7a8cbe4fd76e7d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287a75ae2b297ccc8f41e1daf6bf1a20.png)
![](https://img.xkw.com/dksih/QBM/2024/1/29/3421690713399296/3444842813702144/STEM/5983956f50b7470b8788d8bb128c3b29.png?resizew=196)
您最近一年使用:0次