1 . 如图,正方形
的边长为2,现将正方形沿其对角线
进行折叠,使其成为一个空间四边形,在空间四边形中,下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.B,D两点间的距离d满足![]() |
B.异面直线![]() ![]() |
C.对应三棱锥![]() ![]() |
D.当且仅当![]() ![]() |
您最近一年使用:0次
2 . 已知正方体
的棱长为1,
是棱
上的动点,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c851cf4994e90632536297d151badc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/00f0c16e-4f8b-4f02-8f62-937148ef7800.png?resizew=181)
A.![]() ![]() | B.![]() |
C.二面角![]() ![]() | D.三棱锥![]() ![]() |
您最近一年使用:0次
3 . 如图,多面体
中,
,且
两两垂直,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5dd797caf9078256fe9a9ec4b3f01c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502ea47eeb3ae5330c2acee8584b076f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c83984c62d390c6b30efa5d4e560de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/25/63be1d52-2c10-4675-862e-11bf55e762f8.png?resizew=112)
A.三棱锥![]() |
B.球面经过点![]() ![]() |
C.直线![]() ![]() |
D.二面角![]() ![]() |
您最近一年使用:0次
2023-08-24更新
|
337次组卷
|
2卷引用:安徽省安庆九一六学校2022-2023学年高二上学期9月月考数学试题
4 . 如图,正方体
的棱长为
,
、
分别是棱
、
的中点,过点
、
的平面分别与棱
、
交于点
、
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.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/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/6/691c63e4-eb3e-4c34-be2c-fe38f0406b7d.png?resizew=154)
A.平面![]() ![]() ![]() |
B.四边形![]() ![]() |
C.四棱锥![]() ![]() |
D.点![]() ![]() ![]() |
您最近一年使用:0次
5 . 正四面体ABCD中,棱长为a,高为h,外接球半径为R,内切球半径为r,AB与平面BCD所成角为,二面角A-BD-C的大小为
,则( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-25更新
|
415次组卷
|
3卷引用:福建省福州市八县(市、区)一中2022-2023学年高二上学期期末联考数学试题
福建省福州市八县(市、区)一中2022-2023学年高二上学期期末联考数学试题福建省福州市八县(市)2022-2023学年高二上学期期末联考数学试题(已下线)第二章 立体几何中的计算 专题一 空间角 微点7 二面角大小的计算(二)【培优版】
6 . 如图,在四棱锥
中,
平面
,底面
为矩形,且
,则( )
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a2448fb5e984ba8633cb8a85c470a0c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/52a14e55-0217-4e5c-8d92-1623744158eb.png?resizew=196)
A.平面![]() ![]() | B.点![]() ![]() ![]() |
C.二面角![]() ![]() | D.若平面![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
7 . 如图,
为圆锥
的底面圆
的直径,点
是圆
上异于
的动点,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5ffacfb56b0d4f1509279ab618f9f1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/15/1f27f170-bea5-47d8-b6df-6384b3afc5a6.png?resizew=193)
A.圆锥![]() ![]() |
B.![]() ![]() |
C.若点![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
8 . 已知正方体
,设
是棱
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.![]() ![]() ![]() |
B.![]() |
C.平面![]() ![]() ![]() |
D.三棱锥![]() ![]() |
您最近一年使用:0次
2022-11-24更新
|
1212次组卷
|
4卷引用:福建省福州延安中学2023届高三上学期12月阶段练习数学试题
9 . 正方体
的棱长为2,H为线段AB中点,P在正方体的内部及其表面运动,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cee74b5b19fc5d46c2668e98e8c3614.png)
A.三棱锥![]() |
B.若![]() ![]() |
C.正方体的每个面与P的轨迹所在平面所成角都相等 |
D.正方体的每条棱与P的轨迹所在平面所成角不都相等 |
您最近一年使用:0次
2023-02-25更新
|
506次组卷
|
2卷引用:福建省泉州市2022-2023学年高二上学期期末教学质量监测数学试题
21-22高一·全国·单元测试
10 . 在棱长为
的正方体
中,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.异面直线![]() ![]() ![]() |
B.异面直线![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.二面角![]() ![]() |
您最近一年使用:0次