名校
1 . 在平面四边形
中,
,将
沿对角线
所在的直线折起,使平面
平面
,则直线
与平面
所成角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f022c2db24a9b8fdb4c0603653cf09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-10-08更新
|
764次组卷
|
8卷引用:四川省遂宁中学校2019-2020学年高二下学期期中考试数学(理)试题
2 . 已知四边形
为直角梯形,
,
,且
,
,点
,
分别在线段
和
上,使四边形
为正方形,将四边形
沿
翻折至使
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/13856415-0425-4008-8f48-abffea8955d2.png?resizew=320)
(1)若线段
中点为
,求翻折后形成的多面体
的体积;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3bbe4cdd2c154bd9a8073b0d4cecb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935ffc0f6d4e114d846dd4ea66bbffa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5115fc1302d9a7515729c0e6a748c52e.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185e6a4a32eabf488620694c2afc43a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e8223314420a4fbe3a4f5a9d124541.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/13856415-0425-4008-8f48-abffea8955d2.png?resizew=320)
(1)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ae510d3efa9498ae8382a2a1e8ca9d.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185e6a4a32eabf488620694c2afc43a8.png)
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3 . 如图,在直三棱柱(侧棱与底面垂直的三棱柱)
中,
,点D是侧棱
延长线上一点,EF是平面ABD与平面
的交线.
![](https://img.xkw.com/dksih/QBM/2018/12/14/2096495491629056/2098987604213760/STEM/aa9e5ab2a73e446abdbf9c069269b361.png?resizew=126)
(1)求证:
;
(2)当直线BD与平面ABC所成角的正切值为
时,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e32876a1f50ae401830d3c5c4513f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://img.xkw.com/dksih/QBM/2018/12/14/2096495491629056/2098987604213760/STEM/aa9e5ab2a73e446abdbf9c069269b361.png?resizew=126)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca08229da992fdd08d6cb1efeb469b1.png)
(2)当直线BD与平面ABC所成角的正切值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448f5c45be5e4ee2e189204d334b83fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98eda189662dd9e479f52c251fb37765.png)
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名校
4 . 设正三棱锥
的底边长为
,高为2,则侧棱与底面所成的角的大小为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
您最近一年使用:0次
2019-11-10更新
|
181次组卷
|
4卷引用:四川省内江市第六中学2020-2021学年高二上学期第三次月考数学理科试题
四川省内江市第六中学2020-2021学年高二上学期第三次月考数学理科试题四川省内江市第六中学2020-2021学年高二上学期第三次月考数学文科试题上海市曹杨第二中学2018-2019学年高二上学期期末复习试卷2数学试题(已下线)专题3.4 空间直线与平面【易错题型专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)
名校
5 . 如图,已知四棱锥P-ABCD,
底面
,且底面ABCD是边长为2的正方形,M、N分别为PB、PC的中点.
(Ⅰ)证明:MN//平面PAD;
(Ⅱ)若PA与平面ABCD所成的角为
,求四棱锥P-ABCD的体积V.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e458f4503e211b542f6f30c8a34eaca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(Ⅰ)证明:MN//平面PAD;
(Ⅱ)若PA与平面ABCD所成的角为
![](https://img.xkw.com/dksih/QBM/2016/10/9/1573058539986944/1573058545385472/STEM/98256e4ea13848bb8f953a7faf847ce1.png)
![](https://img.xkw.com/dksih/QBM/2016/10/9/1573058539986944/1573058545385472/STEM/21747bc35ac24d0cb83f14245e9de198.png)
您最近一年使用:0次
2016-12-04更新
|
558次组卷
|
5卷引用:四川省广安代市中学校2021-2022学年高二上学期第一次月考数学(文)试题
解题方法
6 . 在直四棱柱
中底面四边形
为菱形,
,
,
,E为
中点,过点E且和平面
垂直的平面为
,
平面
,则直线
和平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13c772461aef1d9d715129636739748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc78a86b12ba0b4553135a3a635fc418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5aea91cc843178acecd7affbd21efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e516121599c9fcc528121c00afcf52fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 如图1,ABCD为菱形,∠ABC=60°,△PAB是边长为2的等边三角形,点M为AB的中点,将△PAB沿AB边折起,使平面PAB⊥平面ABCD,连接PC、PD,如图2,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/9e518ae4-d785-4a90-be18-537b73829c1d.png?resizew=316)
(1)证明:
;
(2)求PD与平面
所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/9e518ae4-d785-4a90-be18-537b73829c1d.png?resizew=316)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafa8c14100a4f847b41b9148954116c.png)
(2)求PD与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
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解题方法
8 . 如图,正方体
中,E为AB中点,F为正方形BCC1B1的中心.
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572466994380800/1572467000320000/STEM/d04e0409-e531-4f3a-a17f-e4d76b1f0773.png?resizew=368)
(1)求直线EF与平面ABCD所成角的正切值;
(2)求异面直线A1C与EF所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572466994380800/1572467000320000/STEM/d04e0409-e531-4f3a-a17f-e4d76b1f0773.png?resizew=368)
(1)求直线EF与平面ABCD所成角的正切值;
(2)求异面直线A1C与EF所成角的余弦值.
您最近一年使用:0次
2016-12-04更新
|
470次组卷
|
4卷引用:2015-2016学年四川省雅安市天全中学高二11月月考文科数学试卷
9 . 已知底面为边长为
的正方形,侧棱长为
的直四棱柱
中,
是面
上的动点.给出以下四个结论中,正确的个数是
①与点
距离为
的点
形成一条曲线,则该曲线的长度是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f5d873f08859b4b2c05487c1602209.png)
②若
面
,则
与面
所成角的正切值取值范围是
;
③若
,则
在该四棱柱六个面上的正投影长度之和的最大值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8456cee87c4e22351affc28f3a73a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
①与点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f5d873f08859b4b2c05487c1602209.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c99cda5a272bbe32b28575fa51b9f6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cfdc6224181d44e63aab43ddaf07ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f5b6dde177ec56f47e337f38dff699.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4b4c90faa3f4e43393b38400ff44b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec978eb43bc4f9e7df83b0d0195dcda.png)
A.![]() | B.1 | C.2 | D.3 |
您最近一年使用:0次
2016-12-04更新
|
934次组卷
|
2卷引用:2015-2016学年四川省双流中学高二上期中数学试卷
名校
解题方法
10 . 已知圆锥的顶点为
为底面中心,
为底面圆周上不重合的三点,
为底面的直径,
,
为
的中点,设直线
与平面
所成角为
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1100e833c046e95db824d99efd5d0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93767331e9bac06a564973a9f4fc663.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884b508394b3ab50734b584d9ec783c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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