(2017山东烟台第12题)如图,数学实践活动小组要测量学校附近楼房
的高度,在水平底面
处安置侧倾器得楼房
顶部点
的仰角为
,向前走20米到达
处,测得点
的仰角为
.已知侧倾器
的高度为1.6米,则楼房
的高度约为( )
(结果精确到0.1米,
)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/cc5216e5ae1346968e5345928dbb8bba.png?resizew=158)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/8ae513d660f7427795f5d33cad694e01.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/997aa6139b0045889fd1630640df526d.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/9e239eacbc074350a23e17abd613bfa6.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/b9f8b8b764f64780ac8de0221a61b609.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/553da5456948464ba12613d87d7dec9e.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/c910e0f909d4458dbcc51b6600c28e8b.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/3371b0232ead4a438523e5b46c993823.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/5b418a48efd343caa4fc0c4a5af975e8.png?resizew=39)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/8b2869ce6fc84a87b6c0f34d57cd1e6a.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/41e00f30d48a48cd821648295bcf99eb.png?resizew=27)
(结果精确到0.1米,
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/7fa4bdb25fb04620803eadb67b901da1.png?resizew=76)
![](https://img.xkw.com/dksih/QBM/2018/2/6/1876499711008768/1888385374109696/STEM/cc5216e5ae1346968e5345928dbb8bba.png?resizew=158)
A.![]() | B.![]() | C.![]() | D.![]() |
2017·山东烟台·中考真题 查看更多[2]
更新时间:2017-09-14 11:08:57
|
【知识点】 仰角俯角问题(解直角三角形的应用)
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