11-12高二上·广东·期末
名校
1 . 如图,棱锥
的底面
是矩形,PA
平面ABCD,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/3dc160be-c417-452a-b849-11a4c7901b9b.png?resizew=156)
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02bd5cfe804460846423e77f72db10f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://img.xkw.com/dksih/QBM/2019/1/8/2114291985612800/2115117632692225/STEM/aca8b017e49d4fbf923d227acea2560a.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f621b2c567303e5d3c67d0e044007f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948d54269de7997fe98f2c1f834e3a4e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/3dc160be-c417-452a-b849-11a4c7901b9b.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c306e49fd17d29f0174793cb5e1decbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7dac871c73e4118ff88de9b006e485.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1160f65a646419ab6b4e9884d28c1c1b.png)
您最近一年使用:0次
2019-01-09更新
|
1463次组卷
|
7卷引用:海南省儋州市第一中学2020-2021学年高二上学期第一次月考数学试题