1 . 远赴仙境惊鸿宴,一睹人间盛世颜.位于河南洛阳的老君山群山竞秀,拔地通天.一位同学在领略老君山的美景时,用无人机测量了其中一座小山的海拔与该山最高处的古塔AB的塔高.如图,无人机的航线与塔AB在同一铅直平面内,无人机飞行的海拔高度为
,在
处测得塔底
(即小山的最高处)的俯角为
,塔顶
的俯角为
,向山顶方向沿水平线
飞行
到达
处时,测得塔底
的俯角为
,则该座小山的海拔为________
;古塔AB的塔高为________ m.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c5729584c8dce7264e11704c61e199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/24/ebd9999d-0d19-4dca-aa96-d7c651fdb356.png?resizew=162)
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2 . 如图,为了测量某建筑物的高度OP,测量小组选取与该建筑物底部
在同一水平面内的两个测量基点
与
.现测得
米,
20米,在测量基点
测得建筑物顶点
的仰角为
,则该建筑物的高度OP为____________ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
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3卷引用:河南省开封市多校2023-2024学年高一下学期第三次月考数学试题
3 . 如图所示,某旅游景区的
,
景点相距
,测得观光塔
的塔底
在景点
的北偏东45°,在景点
的北偏西60°方向上,在景点
处测得塔顶
的仰角为45°,现有游客甲从景点
沿直线去往景点
,则沿途中观察塔顶
的最大仰角的正切值为________ .(塔顶大小和游客身高忽略不计)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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4 . 如图,已知山体
与山体
的底部在同一水平面上,且两个山体的高线
与
均与水平面垂直,
,在山体
的最高点
处测得山顶
的仰角为
,测得山底A的俯角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
______ m.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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2024-06-16更新
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2卷引用:河南省驻马店市部分学校2023-2024学年高一下学期5月青桐鸣联考数学试题(北师大版)
名校
解题方法
5 . 已知
,且
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0e9b3dcb25156d84ba8f8f02ae1771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e327ba789cbab8832344298ef9506781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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3卷引用:2024届河南省名校联盟考前模拟大联考三模数学试题
名校
解题方法
6 . 如图,在
中,角
所对的边分别为
,已知
,
的平分线
交边
于点
边上的高为
边上的高为
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ada871ccdbd83b6ccbddbcd84521bc.png)
__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7330af1eaa4fbb442ebc7b47be6b6d7a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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3卷引用:2024届河南省名校联盟考前模拟大联考三模数学试题
名校
解题方法
7 . 如图所示,为测量河对岸的塔高
,选取了与塔底
在同一水平面内的两个测量基点
与
,现测得
,则塔高
为__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b13d68ed3ec2da99281f983b3446fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
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8 . 某地需要经过一座山两侧的
两点修建一条穿山隧道.工程人员先选取直线
上的三点
,在隧道
正上方的山顶
处测得
处的俯角为
,
处的俯角为
,
处的俯角为
,且测得
,
,
,则拟修建的隧道
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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9 . “天封塔”位于宁波市海曙区大沙泥街西端与解放南路交汇处,是宁波重要地标之一,为中国江南特有的仿宋阁楼式砖木结构塔,具有宋塔玲珑精巧、古朴庄重的特点,也是古代明州港江海通航的水运航标.某同学为测量天封塔的高度
,选取了与塔底
在同一水平面内的两个测量基点
与
,现测得
,
,
,在点
测得塔顶
的仰角为
,则塔高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
_________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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2024-05-29更新
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558次组卷
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3卷引用:河南省驻马店市新蔡县第一高级中学2023-2024学年高一下学期5月月考数学试题
10 . 如图所示,为测一树的高度,在地面上选取
两点,从
两点分别测得树尖的仰角为
,
,且
两点之间的距离为30m,则该树的高度为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
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2024-04-30更新
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2卷引用:河南省新乡市封丘县第一中学2023-2024学年高一下学期第三次阶段测试数学试题