名校
解题方法
1 . 在平行六面体
中,已知
,
则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb64fd8b6e73749f54c3469d1dba3758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf65951941bf3715f5c1e26ae308c04.png)
A.直线![]() ![]() ![]() |
B.线段![]() ![]() |
C.直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
2 . 如图,在四棱锥
中,
平面
,
,
,
,
,点
是
的中点.
;
(2)求直线
与平面
所成的角的余弦值.
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d6ee72557cb3c3830212d74bca615a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bc7e7906b002e1150680f6a67c30f4.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68a7bf0da4f7c6f739d2e2461ad9b7.png)
您最近一年使用:0次
2023-09-18更新
|
714次组卷
|
7卷引用:重庆市璧山来凤中学2023-2024学年高二上学期9月月考数学试题
重庆市璧山来凤中学2023-2024学年高二上学期9月月考数学试题广东省揭阳市普宁市第二中学2023-2024学年高三上学期第一次月考数学试题福建省泉州市晋江学校2023-2024学年高二上学期第一次阶段检测数学试题贵州省贵阳市观山湖区第一高级中学2023-2024学年高二上学期9月月考数学试题(已下线)专题06 用空间向量研究距离、夹角问题10种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)广东省茂名市高州中学2023-2024学年高二上学期12月月考数学试题江西省2024届高三第一次稳派大联考数学试题
名校
3 . 在四棱锥
中,底面
为直角梯形,
,
,
,
,
面
,
为棱
的中点,经过
、
、
三点的平面
交棱
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/5bb40987-22db-42da-884d-9d4b925c7696.png?resizew=177)
(1)求证:
平面
;
(2)若直线
与平面
所成角大小为
,求平面
与平面
所成角的余弦值.
![](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/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26fbcbde1b8011ed6c3e13b0e83f14ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/5bb40987-22db-42da-884d-9d4b925c7696.png?resizew=177)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d447ce2833cac5260ed5532283fa3997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
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4 . 如图甲是由梯形
,
组成的一个平面图形,其中
,
,
,
,
.如图乙,将其沿
,
折起使得
与
重合,连接
,直线
与平面
所成角为60°.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/24/015777b9-2bba-4b43-874b-119162738b95.png?resizew=321)
(1)证明:
;
(2)求图乙中二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d2530e7023b2345c651e8f53629ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04621725a44b95b6e18fbc97a7b6226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03687d97d61b4a7cecbb73f2a6604212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab17635a999236e8d2e35017a208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/24/015777b9-2bba-4b43-874b-119162738b95.png?resizew=321)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51352936f13995f63cd74207c303971a.png)
(2)求图乙中二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c6e025c4876a06fc3a82ae5d476779.png)
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5 . 如图,棱长为1的正方体
中,点E为
的中点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/c1d2ff9e-9b3b-4723-a94a-34d7023ad0a5.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/c1d2ff9e-9b3b-4723-a94a-34d7023ad0a5.png?resizew=165)
A.![]() ![]() |
B.线段![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.过![]() |
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6 . 如图,直三棱柱
体积为
,
为
的中点,
的面积为
.
到平面
的距离;
(2)若
,平面
平面
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff84e1fe19b1e64c04ffbbbc8f61d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0181723c3b13b5ab2f33d9cdcdd8993e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe182cb0c3b07bbf323392b1faea7a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54edef5199171e54c214476f3946527d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
您最近一年使用:0次
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解题方法
7 . 如图①所示,圆锥绣球是虎耳草科绣球属植物,在中国主要分布于西北、华东、华南、西南等地区,抗虫害能力强,其花序硕大,类似于圆锥形,因此得名.现将某圆锥绣球近似看作如图②所示的圆锥模型,已知
,直线
与圆锥底面所成角的余弦值为
,则该圆锥的侧面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a729216f9e0af73d38f9bfb3f640a94c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-07更新
|
535次组卷
|
5卷引用:重庆市沙坪坝区第七中学校2024届高三上学期12月月考数学试题
重庆市沙坪坝区第七中学校2024届高三上学期12月月考数学试题辽宁省名校联盟2024届高三上学期12月联合考试数学试题辽宁省名校联盟2024届高三上学期12月月考数学试题(已下线)黄金卷07(已下线)8.6.2 直线与平面垂直-同步精品课堂(人教A版2019必修第二册)
名校
解题方法
8 . 已知球
的半径
,平面
经过
的中点,且与
所成的线面角为
,则平面
截球
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e3dfcd8aff269dd5aba398816490c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-28更新
|
394次组卷
|
2卷引用:重庆市第一中学校2023-2024学年高三上学期11月月考数学试卷
名校
解题方法
9 . 如图,已知矩形
中,
,
.点
为线段
上一动点(不与点
重合),将
沿
向上翻折到
,连接
,
.设
,二面角
的大小为
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729684f958ad60b8e905fe1e1da53c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce57e4e1dcd593712430c53e93de0372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6405e9a84b771505dfeaf4d7129d0fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1bdd731e2b62f6438e171301a00bcb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/319c8be2-8ee6-4cc1-b71e-4b3ac4daecf8.png?resizew=165)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.点![]() ![]() ![]() ![]() ![]() |
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2023-11-27更新
|
421次组卷
|
3卷引用:重庆市西南大学附属中学校2023-2024学年高三上学期期中考试数学试题
重庆市西南大学附属中学校2023-2024学年高三上学期期中考试数学试题重庆市第八中学校2023-2024学年度高二上学期检测六数学试题(已下线)第三章 折叠、旋转与展开 专题一 平面图形的翻折、旋转 微点8 平面图形的翻折、旋转综合训练
2023·全国·模拟预测
名校
10 . 一个正四棱台形油槽的上、下底面边长分别为
,容积为
(厚度忽略不计),则该油槽的侧棱与底面所成角的正切值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c40f05f53241947be7866ffdd8c2445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b5e65d432a9008617983f59e1970fe3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次