名校
解题方法
1 . 在长方形
中,
,
,点
在线段
上(不包含端点),沿
将
折起,使二面角
的大小为
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e231505648333857565accb0c3c898.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3744ee15af01a8e7c0f126edb5f68132.png)
A.存在某个位置,使得![]() |
B.存在某个位置,使得直线![]() ![]() |
C.四棱锥![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2024-06-18更新
|
446次组卷
|
3卷引用:甘肃省白银市靖远县2024届高三模拟预测数学试题
名校
解题方法
2 . 已知正方体
的棱长为
为底面
对角线的交点,
是侧面
内的动点(包括边界),如图所示,若
始终成立,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0342946a0f827001a879cad686d1cf68.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/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f25f0af4c0d562bcffd9804e9e09b00.png)
A.点![]() ![]() |
B.动点![]() ![]() ![]() |
C.向量![]() ![]() ![]() |
D.三棱锥![]() ![]() |
您最近一年使用:0次
3 . 已知正方体
的棱长为1,
,
分别为棱
,
上的动点,则( )
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
A.四面体![]() | B.四面体![]() |
C.四面体![]() ![]() | D.四面体![]() ![]() |
您最近一年使用:0次
2024-04-12更新
|
1304次组卷
|
3卷引用:甘肃省兰州市2024届高三下学期三模数学试题
名校
解题方法
4 . 已知正四面体
的棱长为4,点
是棱
上的动点(不包括端点),过点
作平面
平行于
,与棱
交于
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b971ff1b6f62b36cf0b9a641fc419458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942daed6ad022ec1244412405250ec8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5559854fa31f00c55a9fe8c66de6d9.png)
A.该正四面体可以放在半径为![]() |
B.该正四面体的外接球与以![]() ![]() |
C.四边形![]() |
D.四棱锥![]() ![]() |
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2024-02-28更新
|
389次组卷
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2卷引用:甘肃省部分学校2024届高三下学期2月开学考试数学试题
5 . 已知直三棱柱
内接于球
,点
为
的中点,点
为侧面
上一动点,且
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0301f429ebbcb3facf846bb0582d5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a485ce35e36e67861c1b8c424a3126.png)
A.点A到平面![]() ![]() |
B.存在点![]() ![]() ![]() |
C.过点![]() ![]() |
D.点![]() ![]() |
您最近一年使用:0次
名校
解题方法
6 . 已知正方体
的棱长为4,正四面体
的棱长为a,则以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a65b64c35ab151bc4deb2ca5a99a79.png)
A.正方体![]() |
B.正方体![]() ![]() |
C.若正四面体![]() ![]() ![]() |
D.若正方体![]() ![]() ![]() |
您最近一年使用:0次
2023-10-10更新
|
812次组卷
|
5卷引用:甘肃省兰州市第五十八中学教育集团2024届高三上学期建标考试数学试卷
7 . 如图,四棱锥
的底面
是边长为2的正方形,
底面
,
,点
是
的中点,过
三点的平面
与平面
的交线为
,则下列说法正确的是( )
![](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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bec03e804f0cea1db5cde2aa185056a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4817f6d025306bfcba653b4e8d4dc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/15/947ec8ab-bb7f-4a22-a716-722006d50877.png?resizew=143)
A.![]() | B.![]() ![]() |
C.三棱锥![]() ![]() | D.直线![]() ![]() ![]() |
您最近一年使用:0次
2023-08-02更新
|
344次组卷
|
2卷引用:甘肃省定西市渭源县2022-2023学年高一下学期期末数学试题
名校
解题方法
8 . 如图,已知正方体
的棱长为
为正方形底面
内的一动点,则下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5420c8c4cf105205deb4a1b8327e6de8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/22/c40426c5-eaf7-446f-806d-0122023b3ece.png?resizew=152)
A.三棱锥![]() |
B.存在点![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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2023-06-18更新
|
700次组卷
|
3卷引用:甘肃省兰州市城关区兰州第一中学2022-2023学年高一下学期期末数学试题
名校
解题方法
9 . 在正方体
中,
,点P满足
,其中
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9dd1458186cfbdf0701ba835572721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8343242edd0cc654bdaceb7ff2e8ba68.png)
A.当![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2022-12-08更新
|
2341次组卷
|
6卷引用:甘肃省兰州市第六十一中学(兰化一中)2024届高三上学期期末数学试题
名校
10 . 如图,已知正方体
的棱长为2,
分别为
的中点,以下说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/8/f7d7397e-7e02-4f76-8463-5292ba902d17.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6241f9ef86cd0a902cbadaf336767dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813ff40152764e06a810ed2553d28bb6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/8/f7d7397e-7e02-4f76-8463-5292ba902d17.png?resizew=175)
A.三棱锥![]() ![]() |
B.![]() ![]() |
C.过点![]() ![]() |
D.异面直线![]() ![]() ![]() |
您最近一年使用:0次
2022-09-02更新
|
2557次组卷
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8卷引用:甘肃省平凉市第二中学2022-2023学年高二下学期第二次月考数学试题
甘肃省平凉市第二中学2022-2023学年高二下学期第二次月考数学试题湖南省长沙市宁乡市2022届高三下学期5月模拟数学试题黑龙江省哈尔滨市剑桥第三中学2022-2023学年高二上学期9月月考数学试题广东省肇庆市四会中学、广信中学2022-2023学年高二上学期第一次教学质量联考数学试题山东省青岛超银高级中学2022-2023学年高二上学期10月月考数学试题江苏省南通市通州高级中学2022-2023学年高三上学期第一次阶段性测试数学试题广东省佛山市南海区大沥高级中学2023-2024学年高二上学期阶段检测一数学试题(已下线) 第1章 空间向量与立体几何单元测试能力卷-2023-2024学年高二数学上学期人教A版(2019)选择性必修第一册