某日,正在我国南海海域作业的一艘大型渔船突然发生险情,相关部门接到求救信号后,立即调遣一架直升飞机和一艘刚在南海巡航的渔政船前往救援.当飞机到达距离海面3000米的高空C处,测得A处渔政船的俯角为60°,测得B处发生险情渔船的俯角为30°,请问:此时渔政船和渔船相距多远?(结果保留根号)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674858091003904/1736507209162752/STEM/133b3ca8ddcc4a32a82f8b2cf2a5478c.png?resizew=163)
2014·湖南郴州·中考真题 查看更多[11]
更新时间:2016-12-05 20:52:25
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【知识点】 仰角俯角问题(解直角三角形的应用)
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适中
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【推荐1】位于河南省郑州西区
的“郑州眼”创意全媒体大屏一经亮相,就刷爆各类热搜和热榜,大厦东侧有两块竖型大屏,矩形
是“郑州眼”的截面图,他们先在点
处测得点
的仰角
为
,然后在点
处测得点B的仰角
为
,并测得
的距离为
米,点
到点
的距离为
米,(
、
、
、
在同一条直线上,
、
、
、
在同一竖直平面内),求“郑州眼”的高度(结果精确到
,参考数据:
,
,
,
.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfaad4c4467e27421876d8f2a4371d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bedde879f99aed69d745d5ec8fe62084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a2db6311e228ed33b6c71d0a5918cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36581140ebac5d28438ea63b1b23b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384da7acfefa7c656eaca2df173f0cb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683b966b48f00bfc0bfd552e5de14d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f328ba89c0a92a4447788b65571f7aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f62c566ec23538028e708fe04543c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e98e7f0c4a2b99919ade0ee27dea3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7379d1eed8fa2f116f84fe4f2874fb1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460317e7c26f95b9b29cfe1a89b796d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/8d3b883a-32bc-4dd0-af02-9d45575d0977.png?resizew=218)
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解答题-问答题
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【推荐2】一栋家属楼高
,小王在楼顶
处测得对面楼房
的顶端
的俯角是30°;小王下来
到
(即
),在
处测得楼房
的底端
的俯角是45°;求楼房
的高.(直接用无理数表示,无需求近似值)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3adaa9f1da473f689e29f349c58c3279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25986df978766e4984d7d6a7f9660e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/7c0bfa43-78a2-4db6-9399-5e2b81f479a0.jpg?resizew=127)
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