1 . 在正方体
中,下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.若![]() ![]() ![]() |
B.直线![]() ![]() ![]() |
C.![]() ![]() |
D.四面体![]() ![]() |
您最近一年使用:0次
22-23高一下·河南南阳·期末
解题方法
2 . 如图是一个正方体的平面展开图,则在该正方体中
与底面
的夹角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/18/4ae18ac9-7fe5-4fad-a8e6-6c8696d79700.png?resizew=137)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知正方形
的边长为
,现将
沿对角线
翻折,得到三棱锥
.记
的中点分别为
,则下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/30/3012a7de-0e48-4c94-a61c-a6b2cbf44e64.png?resizew=354)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f845ed7788f659184de3e4315899b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3421e6965c86b4cca2a503385b3cc156.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/30/3012a7de-0e48-4c94-a61c-a6b2cbf44e64.png?resizew=354)
A.![]() ![]() |
B.三棱锥![]() ![]() |
C.三棱锥![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
4 . 如图所示,长方体
中,
,O是
的中点,直线
交平面
于点M,则下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/26005fa9-0149-4583-aac2-1ce7c135e329.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06df159fbc33b70abf9d96c4ef278acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/22/26005fa9-0149-4583-aac2-1ce7c135e329.png?resizew=156)
A.A,M,O三点共线 |
B.![]() |
C.直线![]() ![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2023-03-21更新
|
821次组卷
|
4卷引用:河南省2022-2023学年高三下学期核心模拟卷(中)文科数学(二)试题
河南省2022-2023学年高三下学期核心模拟卷(中)文科数学(二)试题青海省西宁市大通回族土族自治县2023届高三第二次模拟考试文科数学试题(已下线)重难点专题03 空间直线平面的垂直-【同步题型讲义】四川省广安第二中学校2023-2024学年高三上学期第二次月考理科数学试题
名校
5 . 如图,在正方体
中,M,N分别为AC,
的中点,则下列说法中不正确 的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/12/968f37ee-3bdf-4494-9ad6-1e9c5722588d.png?resizew=176)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/12/968f37ee-3bdf-4494-9ad6-1e9c5722588d.png?resizew=176)
A.![]() ![]() |
B.![]() |
C.直线MN与平面ABCD所成的角为60° |
D.异面直线MN与![]() |
您最近一年使用:0次
2023-03-10更新
|
2206次组卷
|
10卷引用:河南省2023届普通高中毕业班高考适应性考试文科数学试题
河南省2023届普通高中毕业班高考适应性考试文科数学试题河南省郑州励德双语学校2023-2024学年高二上学期第一次月考数学试题四川省成都市天府新区太平中学2022-2023学年高二下学期3月月考数学(文科)试题四川省成都市天府新区太平中学2022-2023学年高二下学期3月月考数学(理科)试题(已下线)专题25 异面直线所成角-2陕西省西安中学2023届高三七模理科数学试题四川省达州市外国语学校2022-2023学年高二下学期期中考试数学(文) 试题四川省达州市外国语学校2022-2023学年高二下学期期中考试数学(理)试题广西桂林市国龙外国语学校2023届高三5月预测考试数学(理)试题(已下线)专题09 立体几何初步
名校
解题方法
6 . 某车间生产一种圆台形零件,其下底面的直径为4,上底面的直径为8,已知
为上底面的直径,点P是上底面圆周上一点,且
,
是该圆台的一条母线,且
,则
与平面
所成的角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a606499df4459e5fbd6021c61a805359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6914d401b0e7099dbea8ebdd5052ee7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 如图,在正方体
中,点
是线段
上的动点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/28/ca3ca333-e52f-4607-8bcc-b8a031d0967a.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679d50cab81fbebbb1df0fd108be241d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/28/ca3ca333-e52f-4607-8bcc-b8a031d0967a.png?resizew=165)
A.当点![]() ![]() ![]() ![]() ![]() |
B.无论点![]() ![]() ![]() |
C.当点![]() ![]() ![]() ![]() ![]() ![]() |
D.无论点![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
8 . 如图所示,在正方体
中,O,F分别为
,
的中点,点P为棱
上的动点(不含端点),设二面角
的平面角为
,直线OF与平面
所成角为
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/79d84acd-3bb7-47f8-b7bf-3d3d6b88ee83.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7855f92ff75ca38f6673f129d0a6ff61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3ac98443fcba1c9a5fa33378332f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/79d84acd-3bb7-47f8-b7bf-3d3d6b88ee83.png?resizew=172)
A.![]() | B.![]() | C.![]() | D.以上均有可能 |
您最近一年使用:0次
2022-12-30更新
|
391次组卷
|
3卷引用:河南省百师联盟2023届高三一轮复习联考(四)全国卷理科数学试题
9 . 如图,已知棱长为2的正方体
中,点
在线段
上运动,给出下列结论:
①异面直线
与
所成的角范围为
;
②平面
平面
;
③点
到平面
的距离为定值
;
④存在一点
,使得直线
与平面
所成的角为
.其中正确的结论是( ).
![](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/d7f6f93171329d508d491143b9d71f7b.png)
①异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27acbe982b5a0ce9e40b332089afc51.png)
②平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f192a05fd69940f625cb31e336f78710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a52848aff08399a36f217356007a4b.png)
③点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a52848aff08399a36f217356007a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
④存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
A.①② | B.①③ | C.②③ | D.③④ |
您最近一年使用:0次
解题方法
10 . 如图所示,在正方体
中,
,
分别为
,
的中点,设二面角
的平面角为
,直线
与平面
所成角为
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/d422650f-9791-4f9c-851f-2478536fccfe.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a5b1ca2a55ff0a2119296383dd8981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/d422650f-9791-4f9c-851f-2478536fccfe.png?resizew=167)
A.![]() | B.![]() | C.![]() | D.与正方体棱长有关 |
您最近一年使用:0次