1 . 如图①,一块材料的形状是锐角三角形
,边
,高
,要把它加工成正方形零件,使正方形的一边在BC上,其余两个顶点分别在边
,
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/1b7c7696-7bf2-4584-a2ac-8df231b1abbf.png?resizew=381)
(1)加工成的正方形零件的边长是多少?
(2)如果原题中要加工成一个矩形零件,且此矩形可由两个大小相同的正方形并排放置组成,如图②,则这个矩形零件的长和宽分别是多少?
(3)图③,如果把这块材料形状改为
的斜板,已知
,
,
,要把它加工成一个形状为平行四边形
的工件,使
在
上,P、N两点分别在
,
上,且
,则平行四边形
的面积为______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf57eef2bac6f23b54d87bd128fac25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b268b2129e91d0af3423f2c001653d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/1b7c7696-7bf2-4584-a2ac-8df231b1abbf.png?resizew=381)
(1)加工成的正方形零件的边长是多少?
(2)如果原题中要加工成一个矩形零件,且此矩形可由两个大小相同的正方形并排放置组成,如图②,则这个矩形零件的长和宽分别是多少?
(3)图③,如果把这块材料形状改为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77df7ac23dd5c286c3b32a45f4791e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a361722688f17c9b8bae311abf6b74a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e5fc12016a63cc49577ffebeab6ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c970f1ff55a73e2e2f77a6b509034950.png)
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2 . 如图,在平行四边形
中,
,使
,连接
.
是矩形.
(2)连接
,若
,
,求
的长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b455b110a30c1533d0a0657e0e48ac33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e92f48e9bfe12d145f7d2a2f0360d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfe2a58326612fcabd34fd4402a66ee.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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2023-12-10更新
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17卷引用:山西省运城市万荣县2022-2023学年九年级上学期期中数学试题
山西省运城市万荣县2022-2023学年九年级上学期期中数学试题广东省佛山市顺德区翁佑中学2022-2023学年九年级上学期期中考试数学试卷陕西省西安市高陵区2022-2023学年八年级上学期期中考试数学试题陕西省2022-2023学年九年级上学期期中数学试题(已下线)专题18.2.1 矩形的性质与判定(知识解读)-2022-2023学年八年级数学下册《同步考点解读·专题训练》(人教版)湖北省随州市广水市2022-2023学年九年级下学期3月统一考试数学试卷(已下线)专题5.1 矩形的性质与判定(知识解读)-2022-2023学年八年级数学下册《同步考点解读·专题训练》(浙教版)江西省九江市永修县2022-2023学年九年级上学期期中数学试题陕西省榆林市榆阳区2022-2023学年九年级上学期期中数学试题(已下线)第02讲 矩形的性质与判定(知识解读+真题演练+课后巩固)-2023-2024学年九年级数学上册《知识解读·题型专练》(北师大版)(已下线)2023年浙江省宁波市中考数学真题变式题21-24题广东深圳红岭教育集团深康学校2023-2024学年九年级上学期期中数学试题河北省保定市第十三中学2023-2024学年九年级上学期期中数学试题广东省深圳市福田区红岭教育集团2023-2024学年九年级上学期期中数学试题(已下线)第11讲 矩形的判定(6大考点+过关检测)-【寒假自学课】2024年八年级数学寒假提升学与练(人教版)(已下线)专题9.14 矩形(知识梳理与考点分类讲解)-2023-2024学年八年级数学下册基础知识专项突破讲与练(苏科版)(已下线)专题05 矩形、菱形、正方形性质与判定之八大题型-【好题汇编】备战2023-2024学年八年级数学下学期期中真题分类汇编(人教版)
名校
3 . 隘街某店铺在窗户上方安装一个遮阳棚,如图所示,遮阳棚展开长度
,遮阳棚固定点A距离地面高度
,遮阳棚与墙面的夹角为
.在某一时刻,一位身高
的顾客
在太阳光下的影长
,求此时遮阳棚在地面上的影长
.(
,结果精确到
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a754f490a46f1664c3b1b8bcc73c217a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c75bbff567b34c6b2a7230ee3280d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a386ee919a591cfe15d84fb1eddc2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ea270678b9db2551766773e5596ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47bb3f35e3db7c1f3a3dd3eb20151b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/16ad6bbe-c5ff-44fa-96b3-dc2f2938f165.png?resizew=149)
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4 . 如图
(1)课本情境
课本第40页第3题:如图1,已知矩形
,
,
,动点P从点A出发,以
的速度向点O运动,直到点O为止;动点Q同时从点C出发,以
的速度向点B运动,与点P同时结束运动,出发 时,点P和点Q之间的距离是
;
(2)逆向发散
当运动时间为
时,P、Q两点的距离为
;当运动时间为
时,P、Q两点的距离为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/22/69a0ac54-e68e-4e8a-be41-aff424672303.png?resizew=343)
(1)课本情境
课本第40页第3题:如图1,已知矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc441120bf23fcec5234196922c99246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6747441b260ca043446b5d472fece440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9d0d90bf492735a174a88df5704f92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79789686104cab147c239d152271e076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46df3f9b45260d6e22cd00cee72d5c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c280b0355df216440f40aefdcafcbe.png)
(2)逆向发散
当运动时间为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed245388d065efe1a72dc2176802087f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9944bbd1c12f0c6009a16a1de43bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
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5 . 定义:有一组对角是直角的四边形叫做“准矩形”;有两组邻边(不重复)相等的四边形叫做“准菱形”.
知图①,在四边形
中,若
,则四边形
是“准矩形”;
如图②,在四边形
中,若
,则四边形
是“准菱形”.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/17/e356ed7a-71a6-495c-a1ca-9a17df37249c.jpg?resizew=355)
(1)如图,在边长为1的正方形网格中,
在格点(小正方形的顶点)上,请分别在图③、图④中画出“准矩形”
和“准菱形”
(要求:
在格点上);
(2)如图⑤,在
中,
,以
为一边向外作“准菱形”
,且
交于点
.若
,求证:“准菱形”
是菱形;
(3)在(2)的条件和结论下,连接
,若
,请直接写出菱形
的边长为__________.
知图①,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e81b1b9606ad25244ff82c8292df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
如图②,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbae18d3e3c1ba70503b7f24c6f304a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/17/e356ed7a-71a6-495c-a1ca-9a17df37249c.jpg?resizew=355)
(1)如图,在边长为1的正方形网格中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591827e255a9a80766da16e29beb94c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f3056f58faf7c804180dcf162c7517.png)
(2)如图⑤,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0258d74358b323e5891e7915b0b625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c791f7bf368c2efb2b49ce9dc37ad76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
(3)在(2)的条件和结论下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d98dbdb2fd684ac1bcd1f16d1301c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
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2023-10-16更新
|
84次组卷
|
2卷引用:山西省太原市杏花岭区山西省实验中学2023-2024学年九年级上学期月考数学试题
名校
6 . 综合与实践
问题情境:如图,点
为正方形
内一点,
,将
绕点
按顺时针方向旋转
,得到
(点
的对应点为点
).延长
交
于点
,连接
.
的形状,并说明理由;
(2)若
,求
的长.
问题情境:如图,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1070d38d2fea1dc88c6eb31d320b763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a3b94566843e92ce775ff6bdf386fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c63a1935cbb9cc5c2266cbbdb10da42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f0ae0d8e74c9ca1708ce83c36c94df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffd347c352296443a87197ec816fc3e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/901ac05fd87f63acf6a154d4c46052ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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2023-10-16更新
|
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|
3卷引用:山西省太原市杏花岭区山西省实验中学2023-2024学年九年级上学期月考数学试题
7 . 国家跳台滑雪中心位于北京2022年冬奥会张家口赛区古杨树场馆群,是我国首座符合国际标准的冬奥会跳台滑雪场地.外观结构与中国传统吉祥物“如意”的S形曲线完美融合,因此,被形象地称为“雪如意”,在它的身上,体现了现代建筑与自然山水、历史文化的交相辉映,在这里举行的跳台滑雪分大跳台和标准台,大跳台A点出发区海拔1771米,着陆点U点海拔1635米,大跳台与标准台水平相距
米,大跳台坡角
,标准台坡角
.求大跳台与标准台出发点落差
是多少?(参考数据:
,
,
;
,
,
,结果保留整数.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d194ea0173c3e096ffb9146a85743d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f766494b4aa7cab3c371165a9e914239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fb264d5fed7c2293dc568d3fb6e01e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27acebe4b2151ece74173c272a2fee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb722c9b6f930fa227e62da71c1a77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097b2e089c432375c4e5280061809b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c2d2db1fa8a6c703c6edecfa038d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7e8186509333d743c128cec63d9994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59edc04822a09c8aacb12f7641c36376.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/20/9ea7a1ee-d4a7-4f18-a8a5-b6b51a1f4f02.jpg?resizew=409)
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8 . 在学习镜面反射后,小明知道了当入射光线与镜面垂直时,反射光线将与入射光线重合,沿原路返回.他利用此现象设计了一个测量物体高度的工具.
在一次实际测量过程中,小明测得测高工具与建筑物的水平距离
米,请计算建筑物
的高度(结果精确到0.1米,参考数据:
).
项目 | 图例 | 说明 |
测量工具横截面图 |
| 直角三角形![]() ![]() ![]() ![]() ![]() ![]() |
测量示意图 |
| 在建筑物![]() ![]() ![]() |
待测数据 |
|
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3493ba3ba6a1c69ad1ab9f0039129c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460317e7c26f95b9b29cfe1a89b796d6.png)
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2023-09-15更新
|
88次组卷
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2卷引用:2023年山西省朔州市山阴县部分学校中考模拟数学试题
9 . 如图,已知等边
的边长为
,点
是
边上的一个动点(与点A、B不重合),直线
是经过点
的一条直线,把
沿直线l折叠,点B的对应点是点
.
(1)基础图形:如图1,当
时,若点
恰好在
边上,求
的长度;
(2)模型变式:如图2,当
时,若直线
,则
的长度为______;
(3)动态探究:如图3,点
在
边上运动过程中,点
到直线
的距离为
.
如果直线
始终垂直于
,那么
的值是否变化?若变化,求出
的变化范围;若不变化,求出
的值;
当
时,请直接写出在直线
的变化过程中,
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/17/d35c2fec-f987-4cea-b94b-47e3a65bd3ca.png?resizew=626)
(1)基础图形:如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b336e518ac4ff04c6c26e4b8a15844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
(2)模型变式:如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ce0586aafd9bf4fb7e1be082624afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7db6f7222557290dc8d38bfa661608a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655cc150ddc9deba2254780984d0024.png)
(3)动态探究:如图3,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71f070c1aa967a945113735322fae18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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10 . 如图,某“综合与实践”小组欲测量当地的一座宝塔AB的高度,他们利用高度为1米的测倾仪在点C处测得该宝塔顶部A的仰角
.由于宝塔底部B不能直接到达,于是他们将测倾仪后退60米到达点D,测得该宝塔顶部A的仰角
.点A,B,测倾仪
和
均在同一平面内,求该宝塔
的高度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0b93f41e2d30d1a48274256074143f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3323f55d5b9f7bae0a1354c3c5905806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/17/468681d8-36a8-4bce-81f9-eae0909a1aac.jpg?resizew=168)
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