解题方法
1 . 如图所示,在平行六面体
中,
,
,
,
,求对角面
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384aab337f3f62abe8bf148eee83c192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbaccd578a43b2397c8bdd50592fa07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70bf310015fdae4fc4e94b7fe80834bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88eefcee3077e61b39cefc419d2c6e4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0885099ea2bb3fb159016829564cf685.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/94cd8d8a-80b7-4197-a0d0-acd3b6c8c7e1.png?resizew=195)
您最近一年使用:0次
名校
2 . 已知正三棱柱
的侧棱长与底面边长相等,则
与侧面
所成角的正弦值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
您最近一年使用:0次
2023-02-06更新
|
609次组卷
|
7卷引用:沪教版(2020) 必修第三册 高效课堂 第十一章 11.1柱体(1)
沪教版(2020) 必修第三册 高效课堂 第十一章 11.1柱体(1)(已下线)8.6.2 直线与平面垂直(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)安徽省安庆市第一中学2022-2023学年高一下学期第二次段考数学试题(已下线)微专题15 轻松搞定线面角问题(已下线)8.6.2 直线与平面垂直(2) -2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)专题训练:空间线线角、线面角、面面角求解精练30题-同步题型分类归纳讲与练(人教A版2019必修第二册)(已下线)上海市静安区2023届高三二模数学试题变式题6-10
解题方法
3 . 正方体
中作一截面与
垂直,且和正方体所有面相交,如图所示.记截面多边形面积为
,周长为
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/805786a8-59a7-4b6b-a0aa-28d6ea305b4d.png?resizew=187)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/805786a8-59a7-4b6b-a0aa-28d6ea305b4d.png?resizew=187)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
4 . 如图所示,在三棱锥
中,
,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/e7d5ec62-cc9b-470b-831c-73740d6e49be.png?resizew=113)
(1)证明:
;
(2)求三棱锥
的体积
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc755e20d7e1d4efacf2a73d704ac24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3c5d2cbe5cfa47fde68ff3b5b81469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918f551b689e0eb45e0ff6796af74d8f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/e7d5ec62-cc9b-470b-831c-73740d6e49be.png?resizew=113)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8337d3e8670a9ed0165ac853b80af3d9.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b04a4591698f4f2a472f7ed6088674.png)
您最近一年使用:0次
解题方法
5 . 已知圆锥的轴截面SAB是等腰直角三角形,
,Q是底面圆O内一点,且
,C是AS中点,D是点O在SQ上的射影.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/81ca92ca-f229-425f-be42-b875bcafc7da.png?resizew=191)
(1)求证:
面AQS;
(2)求三棱锥
体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39050b33f395372578a167354ce5e4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc53c7ec2ede810469ef367cae00fea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/7/81ca92ca-f229-425f-be42-b875bcafc7da.png?resizew=191)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cbddc9b1f36e2cabd9a6c830d14736.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21e4d492bccab5d45c90a95de6db936.png)
您最近一年使用:0次
6 . 如图,在长方体
中,
,点
为
的中点.
与平面
所成的角;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fc166a6287ed378b99177440e21424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc7e774e4ae40c23bf4ceed179230ca.png)
您最近一年使用:0次
解题方法
7 . 如图,
平面ABCD,
,
,
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deeb2b65014a00e15896b45a20d97965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3bbe4cdd2c154bd9a8073b0d4cecb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307d38cc7012c328f1f22aa793fe76d7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/53d3382b-f5df-415a-a003-adb72cc54b43.png?resizew=156)
您最近一年使用:0次
解题方法
8 . 已知
在平面
外,满足
,
,
平面
,垂足为
,求证:
为底面
的垂心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a15a004f7d47ed595f063e60075223a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbd1316b9d1f0c1e71fd078deec61f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/12/984f8967-3e39-4c4d-95cb-e16b67b8a1f0.png?resizew=144)
您最近一年使用:0次
解题方法
9 . 长方体中
,
,
,
,则
到平面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679748eab882a6be0fefd2cc300349a4.png)
您最近一年使用:0次
10 . 如图,在长方体
中,P,Q是长方形EFGH内互异的两点,
是二面角
的平面角.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/c34f45e9-0e68-486e-afca-ea6fc27ee0ef.png?resizew=151)
(1)证明:点P在EG上;
(2)若
,
,求直线AP与平面PBC所成角的正弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a0c3a4e61b97fa9bc58f3179fc2958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c1375c64dceef45846308a418cf7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a5225684c0477eab664d469cf9a0af.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/c34f45e9-0e68-486e-afca-ea6fc27ee0ef.png?resizew=151)
(1)证明:点P在EG上;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb96e0331eebe80ed1ff610faf531fe.png)
您最近一年使用:0次