1 . 如图所示,在四棱锥
中,
是正三角形,四边形
为直角梯形,点
为
中点,且
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/16d0e614-4f1d-44de-a6ce-28e68bbfda27.png?resizew=106)
(1)求证:平面
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f90126f831d6600522ecaa66c2a8b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b3539fcb35e07fcf3339eb04e7748d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a19338598965bb3856cdd0236bbf694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251a0e63b401d131f69677ccf5fabacf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/16d0e614-4f1d-44de-a6ce-28e68bbfda27.png?resizew=106)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5f0cfc1049f84a04c81bd213afb8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
名校
2 . 如图,四棱锥
的底面
为矩形,侧面
底面
且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/0e608af3-4503-4f8b-9445-8385df82c5fb.png?resizew=150)
(1)证明:
;
(2)若
,且四棱锥
的体积为
,求点
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/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f70d6f5baadf8139ee650b84f2fde70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4d19bf237a6fca67e0d01a9ddb726.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/0e608af3-4503-4f8b-9445-8385df82c5fb.png?resizew=150)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4125524caac016727c80d2722c5ba3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0e448610eac96bdd5f864f873e575d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
2019-11-12更新
|
705次组卷
|
4卷引用:江西省赣州市会昌中学2019-2020学年高二上学期第二次月考数学(文)试题
3 . 如图所示,在四棱锥
中,
是正方形,
平面
,
,
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/86795e68-3975-4fbb-a585-536f06605b8a.png?resizew=209)
(1)求证:平面
平面
;
(2)证明平面
平面
,并求出
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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99926bf272cd757f0985c69b390ebcce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3a25299c121dbb883fd3c7918d566d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/86795e68-3975-4fbb-a585-536f06605b8a.png?resizew=209)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a281c31b6e501123442d141860908a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
(2)证明平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5394d00a80a5900d7fd7d9961868bd22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
您最近一年使用:0次
4 . 如图,在四棱锥
中,底面
是矩形.已知
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/2bad8278-5fde-41a4-95cd-835cef085fef.png?resizew=156)
(1)求点B到面PAD的距离;
(2)取AB中点O,过O作
于E,
![](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/95060fee3304aa96b86192af21eb02d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/2bad8278-5fde-41a4-95cd-835cef085fef.png?resizew=156)
(1)求点B到面PAD的距离;
(2)取AB中点O,过O作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299fe914d64f3a06f9b641d5591fc47a.png)
①求证:为二面角
的平面角;
②求的正切值.
您最近一年使用:0次
名校
解题方法
5 . 如图,已知PA⊥矩形ABCD所在的平面,M、N分别为AB、PC的中点,∠PDA=45°,AB=2,AD=1.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/a51752ea-91b3-4192-bb85-c9dfe1e257e5.png?resizew=181)
(1)求证:MN⊥CD;
(2)求点C点到平面PDM的距离.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/a51752ea-91b3-4192-bb85-c9dfe1e257e5.png?resizew=181)
(1)求证:MN⊥CD;
(2)求点C点到平面PDM的距离.
您最近一年使用:0次
6 . 如图,已知矩形
中,
、
分别是
、
上的点,
,
,
,
是
的中点,现沿着
翻折,使平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/777ae92f-8158-4785-9578-2fa41f34eb2d.png?resizew=400)
(1)
为
的中点,求证:
平面
.
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc56ba5a7757f3365b04024f8fd08b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e0f9d0d28bfb81ad132e0064402573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/777ae92f-8158-4785-9578-2fa41f34eb2d.png?resizew=400)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e258c6995b058164df335e154692b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
7 . 如图1,在△ABC中,D,E分别为AB,AC的中点,O为DE的中点,
,BC=4.将△ADE沿DE折起到△
的位置,使得平面
平面BCED, F为A1C的中点,如图2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/2903039b-bb8a-40e6-b78c-b99092b480f8.png?resizew=313)
(1)求证EF∥平面
;
(2)求点C到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0117046e7a37bebe0c7b987a00d2bcb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b3e7c7845a0ec3cbac709fda131764.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/2903039b-bb8a-40e6-b78c-b99092b480f8.png?resizew=313)
(1)求证EF∥平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
(2)求点C到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb88c278e18d776f165bc571031071d8.png)
您最近一年使用:0次
8 . 如图,在四棱锥
中,ABCD为菱形,
平面ABCD,连接AC,BD交于点O,
,
,E是棱PC上的动点,连接DE.
![](https://img.xkw.com/dksih/QBM/2020/1/30/2388354777645056/2389082449854464/STEM/80a2f18803264e8faf568d34ba40bf79.png?resizew=194)
(1)求证:平面
平面
;
(2)当
面积的最小值是4时,求此时点E到底面ABCD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://img.xkw.com/dksih/QBM/2020/1/30/2388354777645056/2389082449854464/STEM/80a2f18803264e8faf568d34ba40bf79.png?resizew=194)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad86d8f63d48c127ad859b92b2dca0c.png)
您最近一年使用:0次
2020-01-31更新
|
819次组卷
|
7卷引用:江西省信丰中学2018-2019学年高二上学期第四次月考数学(文A+理B+)试题
9 . 如图,四面体
中,
是边长为1的正三角形,
是直角三角形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/6af63c35-6ce4-4496-a163-0a90be8b6b13.png?resizew=184)
(1)证明:平面
平面
;
(2)若点
为
的中点,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecb138a844ef11bb3214cff0a475c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/6af63c35-6ce4-4496-a163-0a90be8b6b13.png?resizew=184)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
2019-10-03更新
|
637次组卷
|
5卷引用:江西省抚州市临川一中2019-2020届高三上学期第一次联合考试 数学(文科)试题
江西省抚州市临川一中2019-2020届高三上学期第一次联合考试 数学(文科)试题2019年10月江西省临川第一中学高三上学期第一次联考数学(文)试题(已下线)专题8.5 直线、平面垂直的判定及其性质(讲)-浙江版《2020年高考一轮复习讲练测》福建省莆田第一中学2019-2020学年高三上学期期中考试数学(文)试题(已下线)专题8.5 直线、平面垂直的判定及性质(讲)-2021年新高考数学一轮复习讲练测
名校
10 . 如图
,在梯形
中,
,
,
为
的中点,
是
与
的交点,将
沿
翻折到图
中
的位置,得到四棱锥
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/1479b53f-bec0-4f63-b572-9e04d3b5b352.png?resizew=420)
(1)求证:
;
(2)当
,
时,求
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4299cca48ff6abfb252ef73b5e62317d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04e2f190be01e1ae0a21eb44e4dce83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/1479b53f-bec0-4f63-b572-9e04d3b5b352.png?resizew=420)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed2a23c5569ecf4ab6ccf927a4ab46f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783a833992e0862211a15fec2d3e3dda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7470868b0a5dc869acc97e586cb06477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eddaf3f33bd9a99162c061c9dd99aee.png)
您最近一年使用:0次
2019-09-19更新
|
1020次组卷
|
4卷引用:江西省临川第一中学2019-2020学年高三上学期10月月考数学(文)试题
江西省临川第一中学2019-2020学年高三上学期10月月考数学(文)试题广东省执信中学2019-2020学年高二上学期9月月考数学试题广东省广雅中学、执信、六中、深外四校2020届高三8月开学联考数学文试题(已下线)专题8.8 第八章 空间向量与立体几何(单元测试)(测)-浙江版《2020年高考一轮复习讲练测》