如图,某地修建高速公路,要从
地向
地修一条隧道(点
在同一水平面上).为了测量
两地之间的距离,一架直升飞机从
地出发,垂直上升
米到达
处,在
处观察
地的俯角
为
,则
两地之间的距离为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/914e7034-d76a-4cec-9a97-b4e6d07c9493.png?resizew=161)
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f0e3992efedab109b99e6e172e6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/25/914e7034-d76a-4cec-9a97-b4e6d07c9493.png?resizew=161)
A.![]() | B.![]() | C.![]() | D.![]() |
2020·浙江温州·模拟预测 查看更多[5]
2020年浙江省温州乐清市中考适应性考试数学试题2020年湖南省长沙市雨花区广益实验中学中考数学二模试卷(已下线)【新东方】【2020】【初三下】【一模卷】【lq】【数学】【在线项目图片收集】(已下线)第29讲 锐角三角函数(讲练)-2021年中考数学一轮复习讲练测(浙江)湖南省长沙市长郡双语实验中学2021-2022学年九年级下学期4月数学练习试题(一模)
更新时间:2020-05-24 14:31:48
|
【知识点】 仰角俯角问题(解直角三角形的应用)
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,由山脚下的一点
测得山顶
的仰角是
,从
沿倾斜角为
的山坡前进
米到
,再次测得山顶
的仰角为
,则山高
为( )
![](https://img.xkw.com/dksih/QBM/2018/12/24/2103705387540480/2105325525147648/STEM/33e3a1c9ef2040eca79030da936be1ea.png?resizew=155)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8140a38ee6b0b28a5b661f8b1f3d5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a0eb6045369a13358f2d5999f7bc3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54fca607eeb8516ccc932569b0ed885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe8dc472dade6cea6943164792ab532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://img.xkw.com/dksih/QBM/2018/12/24/2103705387540480/2105325525147648/STEM/33e3a1c9ef2040eca79030da936be1ea.png?resizew=155)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,为测量一幢大楼的高度,在地面上距离楼底O点20 m的点A处,测得楼顶B点的仰角∠OAB=65°,则这幢大楼的高度为(结果精确到0.1).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/16/9a737a16-a1ba-442c-a8b7-a27767a05805.png?resizew=132)
A.42.8 m | B.42.80 m | C.42.9 m | D.42.90 m |
您最近一年使用:0次