如图,在直三棱柱
中,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/22bf2483-1359-4d26-b7df-8afab9224499.png?resizew=150)
(1)证明:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e9ec412ea0355e4e5cd06c60e5fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90e17995e2f71e297d94ae51c7e5b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/22bf2483-1359-4d26-b7df-8afab9224499.png?resizew=150)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd597851c0db4e4de4769e10e09383b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4e7552a39c412d882766dbcd7eeb69.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4e7552a39c412d882766dbcd7eeb69.png)
21-22高一下·湖南·阶段练习 查看更多[13]
三湘名校教育联盟2021-2022学年高一下学期5月联考数学试题陕西省安康市2021-2022学年高二下学期期末文科数学试题河南省焦作市修武县第一中学2022-2023学年高二上学期定位考试理科数学试题河南省焦作市修武县第一中学2022-2023学年高二上学期定位考试文科数学试题第一章 空间向量与立体几何单元测试(巅峰版)河南省禹州市高级中学2022-2023学年高二上学期第一次月考数学试题安徽省亳州市涡阳县第九中学2021-2022学年高一下学期期末数学试题上海市七宝中学2022-2023学年高二上学期开学考数学试题河南省濮阳市南乐县第一高级中学2022-2023学年高二上学期第一次月考数学试题(已下线)专题01空间直线与平面(7个考点)【知识梳理+解题方法+专题过关】-2022-2023学年高二数学上学期期中期末考点大串讲(沪教版2020必修第三册+选修一)(已下线)第31讲 空间几何体体积及点到面的距离问题4种题型江苏省苏州市苏大附中2022-2023学年高一下学期5月月考数学试题河南省郑州市郑州中学2022-2023学年高一下学期联考模拟数学试题(三)
更新时间:2022-11-16 23:29:33
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,平面
平面
,其中四边形
为正方形,四边形
为直角梯形,
,M为线段
上一点,
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/6943c908-8599-4954-8307-175a09c576e8.png?resizew=205)
(1)确定点M的位置,并证明你的结论;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d339c497051e57a68e89c8a55f60b30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a353d2167b2199c6b1f3ed8cc38455f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/6943c908-8599-4954-8307-175a09c576e8.png?resizew=205)
(1)确定点M的位置,并证明你的结论;
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a1be205bf5955cb569d5eabde0eebb.png)
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解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐2】如图所示,平面
平面
,且四边形
为矩形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/6839cf23-a136-4cad-a88a-2a1529c2c871.png?resizew=139)
(1)求证:
平面
;
(2)求平面
与平面
所成锐二面角的余弦值;
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b312dab930cbbb9a4bb1a99f044dab73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27ec6fb9b50ec0d739a2bbe317fe2d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbde67cc84757b10bb66c47cee22de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f556bd2f45143b3ef33f411ecefe7555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c543f560d8a91d5d60c96feebff9ae50.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/6839cf23-a136-4cad-a88a-2a1529c2c871.png?resizew=139)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcafa398cc6b6079883e7ad153eb62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在△MBC中,MA是BC边上的高,MA=3,AC=4,将△MBC沿MA进行翻折,使得∠BAC=90°如图,再过点B作BD∥AC,连接AD,CD,MD且
,∠CAD=30°.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/fc62a54b-aab4-468f-a486-c4a9c406a8a0.png?resizew=275)
(1)求证:平面MCD⊥平面MAD;
(2)求点B到平面MAD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08bc64519d2c964db74acf715e93ed72.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/fc62a54b-aab4-468f-a486-c4a9c406a8a0.png?resizew=275)
(1)求证:平面MCD⊥平面MAD;
(2)求点B到平面MAD的距离.
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解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图,已知四棱锥
,底面
为菱形,
平面
,
,
分别是
的中点.
(1)证明:
;
(2)若
,求C到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d70de1ffdd9aa376b09bbcfa12644a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d25599d59d4b2f54f8537108fdcc41.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304e9d63e7fdc531f4f7b805b765a1b1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38a6341dbb03ec2c0c10e5353a07c7a.png)
![](https://img.xkw.com/dksih/QBM/2018/1/25/1867892665016320/1868623905464320/STEM/27b5a7365f0349daa6d4b3b206604480.png?resizew=218)
您最近一年使用:0次