名校
解题方法
1 . 如图,已知
分别是三棱锥
棱
上的点.
为平行四边形,证明:
面
;
(2)若
分别是
的中点,且
,直线
和直线
所成角为
,求直线
和直线
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d45053e5879b431923e0d53b57091f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/068eeefc0c19329cc04ff28ba51ac090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce3da36477d98f47fff39520e496617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1e6d86c5142ba1576cc277dbf32994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1655c164ebe93332ef4d9fed6bdeb04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7288db347b6e10d3d679d4030c857a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4fce8e923062b9779553d6f282895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4fce8e923062b9779553d6f282895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2790947716b1cfa9c5e7a65db4093.png)
您最近一年使用:0次
名校
解题方法
2 . 如图1,山形图是两个全等的直角梯形
和
的组合图,将直角梯形
沿底边
翻折,得到图2所示的几何体.已知
,
,点
在线段
上,且
在几何体
中,解决下面问题.
平面
;
(2)若平面
平面
,证明:
.
![](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/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10de2459bc376f9a3de90f74cc18ca7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde387abe3ecba7cde65df9c58131b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a39a7453e6994a580038828513c68c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3b8602719b3d371bc9ec6c441bb9f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c34b18525831f3eda7bb90be0199b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7513c5dc6e1d35f76020f8f60c95669.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c897a54f2e36bc4b52fba74b41c89d2d.png)
您最近一年使用:0次
2023-11-24更新
|
606次组卷
|
8卷引用:河北省部分高中2024届高三上学期11月联考数学试题
河北省部分高中2024届高三上学期11月联考数学试题江西省部分地区2023-2024学年高三上学期11月质量检测数学试题陕西省榆林市府谷县第一中学2024届高三上学期第五次月考数学(理)试题山西省运城市盐湖区第五高级中学2024届高三上学期一轮复习成果检测数学试题(已下线)热点6-1 线线、线面、面面的平行与垂直(6题型+满分技巧+限时检测)(已下线)第15讲 8.6.3平面与平面垂直(第2课时)-【帮课堂】(人教A版2019必修第二册)(已下线)13.2.4 平面与平面的位置关系(2)-【帮课堂】(苏教版2019必修第二册)(已下线)11.4.2平面与平面垂直-同步精品课堂(人教B版2019必修第四册)
名校
3 . 在如图所示的组合体中,
是直三棱柱,延长
至
,使
,连接
,
,
分别是
,
的中点,动点
在直线
上,
,
,
.
(1)试判断直线
与平面
的关系并证明;
(2)试确定动点
的位置,使二面角
的余弦值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212bfbd5575772ca36d6fc3e7b246e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdc08e1c4a04a18d5ecea03393e36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883fc5e3faf39829d60804b59deb1730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08c596aff6331566a0149449183c2024.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/adae144c-12e6-482a-8125-e1e3b7c8d723.png?resizew=197)
(1)试判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)试确定动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420b54e52397491c0f517c741f4bd059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
您最近一年使用:0次
2023-09-12更新
|
532次组卷
|
3卷引用:河北省石家庄市部分学校2023届高三下学期期中数学试题
4 . 在圆柱
中,等腰梯形
为底面圆
的内接四边形,且
,矩形
是该圆柱的轴截面,
为圆柱的一条母线,
.
(1)求证:平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42cb320b4c1333296d5c5eca549f304.png)
平面
;
(2)设
,
,试确定
的值,使得直线
与平面
所成角的正弦值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c0ee0aca57a218e5612835ab49ee2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21093eae7765f54a8de66750a63e1a6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/5/f7290855-b1f2-4b9d-ad7b-7b801e04eea2.png?resizew=164)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42cb320b4c1333296d5c5eca549f304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0515adff91b7ab39e9e1fb88943ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90131175c3fb6a3837a22d7d5bbc268d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f29837db4ec4d0aeb8d7ad9fcb316d6.png)
您最近一年使用:0次
名校
解题方法
5 . 如图1,四边形ABCD是等腰梯形,E,F分别是AD,BC的中点,
.将四边形ABFE沿着EF折起到四边形
处,使得
,如图2,G在
上,且
.
平面DFG;
(2)求平面DFG与平面
夹角的余弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a4f0b5ec9e40e70c00eaae68d1d3888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52bf6ff245d22c6dbebbb36bb780d3ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11197fb5a297ccd643d34ecdbd04f794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ade35115ffaa4d6d6f1c2e136bd5f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07391ef575d28f09bc5cda0ff8130a54.png)
(2)求平面DFG与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
您最近一年使用:0次
2023-03-17更新
|
1647次组卷
|
3卷引用:河北省邯郸市2023届高三一模数学试题
6 . 如图1,四边形
是矩形,将
沿对角线
折起成
,连接
,如图2,构成三棱锥
.过动点
作平面
的垂线
,垂足是
.
落在何处时,平面
平面
,并说明理由;
(2)在三棱锥
中,若
为
的中点,判断直线
与平面
的位置关系,并说明理由;
(3)设
是
及其内部的点构成的集合,
,当
时,求三棱锥
的体积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f8441e5e499d705e4625e4c7db33dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8b40d14544a9be0bebdb276f0fa865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c586b72a984e1fd9082b9f02ef7f3e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5933dbf3b867e009b26602dfbe0458e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ebf8aa867ccca195ec94c3c96e9b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)在三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c586b72a984e1fd9082b9f02ef7f3e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe1b2308c10e10cd8deaeddf9614a53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e7281b475e016846062667edbd754e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172732c3b3e074a1f04599c355872fb3.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9639896487e6cf18e8fd02d2a7ed2087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be73600a92d9b8eb472bad7b6acc334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c586b72a984e1fd9082b9f02ef7f3e91.png)
您最近一年使用:0次
2022-07-11更新
|
436次组卷
|
5卷引用:河北省赵县中学2022-2023学年高一下学期5月月考数学试题
河北省赵县中学2022-2023学年高一下学期5月月考数学试题河北省石家庄市五校联合体2022-2023学年高一下学期期中数学试题北京市大兴区2021-2022学年高一下学期期末检测数学试题(已下线)模块五 高一下期中重组篇(河北)(已下线)专题06 空间中点线面的位置关系6种常考题型归类(2) -期期末真题分类汇编(北京专用)
名校
解题方法
7 . 圆柱
如图所示,
为下底面圆的直径,
为上底面圆的直径,
底面
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986891897692160/2987724381298688/STEM/5a8b1c56-2246-4566-89d0-40b77e3baf1d.png?resizew=155)
(1)证明:
面
.
(2)求圆柱
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d212c1709b8e72a055cf1b5381ef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986891897692160/2987724381298688/STEM/5a8b1c56-2246-4566-89d0-40b77e3baf1d.png?resizew=155)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574a6cff0aca240f071ed933c28e32f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)求圆柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
您最近一年使用:0次
2022-05-26更新
|
871次组卷
|
5卷引用:河北省沧衡八校联盟2021-2022学年高一下学期期中数学试题
河北省沧衡八校联盟2021-2022学年高一下学期期中数学试题重庆市实验中学校2021-2022学年高一下学期期末复习(三)数学试题广东省揭阳市普宁市2021-2022学年高一下学期期末数学试题(已下线)8.6.1 空间直线、平面的垂直(精练)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)(已下线)期末复习06 空间几何线面、面面平行-期末专项复习