名校
解题方法
1 . 如图,四边形
为正方形,平面
平面
,且
为正三角形,
,
为
的中点,则下列命题中错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/aa9296f5-81c0-4104-87e2-b5e84adfcc7c.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/aa9296f5-81c0-4104-87e2-b5e84adfcc7c.png?resizew=163)
A.![]() | B.![]() ![]() |
C.直线![]() ![]() ![]() | D.二面角![]() ![]() |
您最近一年使用:0次
解题方法
2 . 在正方体
中,下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() ![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
3 . 在正方体
中,
是
的中点,则异面直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-04更新
|
876次组卷
|
4卷引用:1.2.3 直线与平面的夹角(分层训练)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第一册)
(已下线)1.2.3 直线与平面的夹角(分层训练)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第一册)河北省沧州市东光县2022-2023学年高二上学期11月期中数学试题四川省乐山沫若中学2022-2023学年高二上学期第二次月考(期中考试)数学(文)试题(已下线)专题25 异面直线所成角-1
解题方法
4 . 如图是一个正方体的平面展开图,在这个正方体中,下列说法中正确的序号是___________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/ba878d9d-72ac-4574-abac-ed26bfa6c272.png?resizew=155)
①直线
与直线
相交;
②直线
与直线
平行;
③直线BM与直线
是异面直线;
④直线
与直线
成
角.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/ba878d9d-72ac-4574-abac-ed26bfa6c272.png?resizew=155)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
③直线BM与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
④直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
您最近一年使用:0次
5 . 在棱长为2的正方体
中,
分别为
和
的中点
(1)求证:
平面
;
(2)求异面直线
与
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72545bef56c4e32d1b76489bd32c3842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa7d487586e3702f55cd2d6466654bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f83044285fd2454d070d0ba68c2bdab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb16f7dbc4b9993c4efa0764df1d8ca.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db604ddae7bc9680c678beef10428ce.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
6 . 在矩形
中,
,
,
为边
的中点,现将
绕直线
翻转至
处,如图所示,若
为线段
的中点,则异面直线
与
所成角的正切值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d833a8e953d0d3a48a46d2b3aec89147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd0ff0aeb36cbe870a8e0490507b6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17288da70b31823293794cb289e3123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1021bfa60d3603f970fa0a6726463f.png)
A.![]() | B.2 | C.![]() | D.4 |
您最近一年使用:0次
2024-05-12更新
|
1049次组卷
|
9卷引用:人教A版(2019) 必修第二册 实战演练 第八章 课时练习29 直线与直线垂直
人教A版(2019) 必修第二册 实战演练 第八章 课时练习29 直线与直线垂直衡水金卷2018年普通高等学校招生全国统一考试模拟试卷 分科综合卷 理科数学(三)(已下线)第08章 立体几何 (单元测试)-2021年高考数学(文)一轮复习讲练测(已下线)第八章 本章综合--归纳本章考点【第一课】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)6.3空间点、直线、平面之间的位置关系-【帮课堂】(北师大版2019必修第二册)江苏省无锡市辅仁高级中学2023-2024学年高一下学期5月月考数学试卷(已下线)专题04 第八章 立体几何初步(2)-期末考点大串讲(人教A版2019必修第二册)广西南宁市第二中学2023-2024学年高一下学期5月月考数学试卷(已下线)专题07 立体几何小题常考题型归类-期末考点大串讲(人教B版2019必修第四册)
名校
7 . 已知正方体
棱长为2,
为棱
的中点,
为底面
上的动点,则下列说法正确的有( )个
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/759d0ffc-8032-4cfd-8a7f-ae5907e3b9f2.png?resizew=199)
①存在点
,使得
;
②存在唯一点
,使得
;
③当
,此时点
的轨迹长度为
;
④当
为底面
的中心时,三棱锥
的外接球体积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a0c3a4e61b97fa9bc58f3179fc2958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/759d0ffc-8032-4cfd-8a7f-ae5907e3b9f2.png?resizew=199)
①存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9ce989ef2d108b6d4dc5b3c771a7c9.png)
②存在唯一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c91133f180bb95108505e1404225c5.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60a982d3ec7a4a4d17638f8daf3cc30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790c0a17ee2d7181ee95da741694bd1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a44a47c4a556c9521cbe5fdc234acc.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
8 . 如图,四面体ABCD中,O、E分别是BD、BC的中点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba593745d89c16c9fcf60800f30fdc1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/20/3dda0917-20dc-451b-9260-768f12a9dbc9.png?resizew=253)
(1)求证:
平面BCD;
(2)求异面直线AB与CD所成角的大小;
(3)求点E到平面ACD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba593745d89c16c9fcf60800f30fdc1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/20/3dda0917-20dc-451b-9260-768f12a9dbc9.png?resizew=253)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
(2)求异面直线AB与CD所成角的大小;
(3)求点E到平面ACD的距离.
您最近一年使用:0次
2022-09-20更新
|
939次组卷
|
5卷引用:重点题型训练13:第6章平行关系、垂直关系-2020-2021学年北师大版(2019)高中数学必修第二册
解题方法
9 . 如图,已知正四棱锥V-ABCD,底面面积为16,一条侧棱长为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/fdc667b2-6e0c-4f9e-b2fd-21650d50a618.png?resizew=168)
(1)求异面直线VA,DC所成角的大小;
(2)求侧棱VB与底面所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33348225b1debf7ce354a7bad3ab6bc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/fdc667b2-6e0c-4f9e-b2fd-21650d50a618.png?resizew=168)
(1)求异面直线VA,DC所成角的大小;
(2)求侧棱VB与底面所成角的大小.
您最近一年使用:0次
解题方法
10 . 圆柱的高为4厘米,底面半径为3厘米,已知上底面一条半径
所在直线与下底面的一条半径
所在直线的夹角为60°,求:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/97fb6829-9de9-4d25-9650-cd7fae970c4b.png?resizew=106)
(1)直线
与圆柱的轴
所成角的正切值;
(2)线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637859805b7b01f7a9a64771563406e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/97fb6829-9de9-4d25-9650-cd7fae970c4b.png?resizew=106)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
您最近一年使用:0次