1 . “伦敦眼”坐落在英国伦敦泰晤士河畔,是世界上首座观景摩天轮,又称“千禧之轮”,该摩天轮的半径为6(单位:
),游客在乘坐舱
升到上半空鸟瞰伦敦建筑
,伦敦眼与建筑之间的距离
为12(单位:
),游客在乘坐舱
看建筑
的视角为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/82fa3d96-1aa6-469f-beaa-a759c42d008c.png?resizew=226)
(1)当乘坐舱
在伦敦眼的最高点
时,视角
,求建筑
的高度;
(2)当游客在乘坐舱
看建筑
的视角
为
时,拍摄效果最好.若在伦敦眼上可以拍摄到效果最好的照片,求建筑
的最低高度.
(说明:为了便于计算,数据与实际距离有误差,伦敦眼的实际高度为
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/82fa3d96-1aa6-469f-beaa-a759c42d008c.png?resizew=226)
(1)当乘坐舱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7b9d9bf0d5fc25c99170ab27fa4045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)当游客在乘坐舱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(说明:为了便于计算,数据与实际距离有误差,伦敦眼的实际高度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac5b2ffaa91da49286fcbfea9d6644b.png)
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2020-03-25更新
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501次组卷
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5卷引用:2020届江苏省淮安市淮阴中学、姜堰中学高三上学期期中联考数学试题