如图,已知四边形ABCD为梯形,AB
CD,∠DAB=90°,BDD1B1为矩形,且平面BDD1B1⊥平面ABCD,又AB=AD=BB1=1,CD=2.
![](https://img.xkw.com/dksih/QBM/2021/6/7/2737750561767424/2803672218976256/STEM/7eedb1ba130944f8bf4aaf49ca94019e.png?resizew=166)
(1)证明:CB1⊥平面B1D1A;
(2)求B1到平面ACD1的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://img.xkw.com/dksih/QBM/2021/6/7/2737750561767424/2803672218976256/STEM/7eedb1ba130944f8bf4aaf49ca94019e.png?resizew=166)
(1)证明:CB1⊥平面B1D1A;
(2)求B1到平面ACD1的距离.
20-21高一下·安徽安庆·阶段练习 查看更多[6]
安徽省安庆市九一六学校2020-2021学年高一下学期5月月考数学试题天津市静海区第一中学2022届高三下学期3月学生学业能力调研数学试题(已下线)第8章 立体几何初步(典型30题专练)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)安徽省滁州市定远县育才学校2021-2022学年高一下学期5月月考数学试题安徽省合肥市肥东县综合高中2021-2022学年高一下学期期末考试数学试题江西省景德镇市乐平中学2023-2024学年高二上学期期末数学试题
更新时间:2021-09-08 13:48:38
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