名校
1 . 在四棱锥
中,
是矩形,
为棱
上一点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5130ddc74af23f8ccfaa5974a223e84c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4db9b82b67efe45a02fca32bfcf5dc.png)
A.点![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.四棱锥![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
2 . 在正方体
中,
,
为
的中点,
是正方形
内部一点(不含边界),则下列说法正确的是( )
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
A.平面![]() ![]() |
B.平面![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.以![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
3 . 在
中,
,边
在平面
上的射影长分别为3,4,则边
在
上的射影长可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62293e76748bef6604fb0faff06d99b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知正方体
的棱长为1,点
分别是
的中点,
在正方体内部且满足
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7c765f23652ca1f8c3742eaddbe036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fb1884afa6b9d2625b489d6a0b4667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fd209384e1533e43bbb29adce0421d.png)
A.点![]() ![]() ![]() | B.点![]() ![]() ![]() |
C.平面![]() ![]() ![]() | D.点![]() ![]() ![]() |
您最近一年使用:0次
名校
5 . 三棱锥
各顶点均在半径为2的球
的表面上,
,二面角
的大小为
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f17c2222ccbb93af7bc2e8c307c92ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b796bbaeb8450404c2d146283562006e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
A.直线![]() ![]() ![]() |
B.三棱锥![]() ![]() |
C.点![]() ![]() |
D.点![]() ![]() |
您最近一年使用:0次
6 . 如图,在棱长为2的正方体
中,
分别是棱
的中点,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/c99e7102-f228-4d7e-831f-8a1c456ca588.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db31b6ce9408706f77680ac8c75c2ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b318a89e8653ef62c66bae95ac1ab10.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/c99e7102-f228-4d7e-831f-8a1c456ca588.png?resizew=159)
A.![]() ![]() |
B.![]() ![]() ![]() |
C.异面直线![]() ![]() |
D.平面![]() ![]() |
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2024-02-20更新
|
829次组卷
|
3卷引用:湖南省长沙市麓共体2023-2024学年高二下学期第一次学情检测数学试卷
名校
7 . 已知球
的半径为2,点
是球
表面上的定点,且
,
,点
是球
表面上的动点,满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6a21e67e232d5db608299f0bc364ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ffe9de3a135dac9e970edd2bc979b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224dc2a6139f056e1a219acc648eae6a.png)
A.有且仅有一个点![]() ![]() | B.点![]() ![]() ![]() |
C.存在点![]() ![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2023-08-22更新
|
1069次组卷
|
2卷引用:河南省“顶尖计划”2023-2024学年高中毕业班上学期第一次联考数学试题
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8 . 如图,在正方体
中,
为
的中点,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/3/21e793af-afdf-4bf8-80dc-b727dc0f4487.png?resizew=172)
![](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/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/3/21e793af-afdf-4bf8-80dc-b727dc0f4487.png?resizew=172)
A.![]() ![]() |
B.![]() |
C.若正方体的棱长为![]() ![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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2023-10-14更新
|
299次组卷
|
2卷引用:辽宁省抚顺德才高级中学2023-2024学年高二上学期期初考试数学试题
名校
9 . 如图,在直三棱柱
中,
,
,
是等边三角形,点O为该三棱柱外接球的球心,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7e8dd831f4edc711c0f7d5f078f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/17/2cbad379-9fa4-4e5c-b981-70f7532a539f.png?resizew=113)
A.![]() ![]() | B.异面直线![]() ![]() ![]() |
C.球O的表面积是![]() | D.点O到平面![]() ![]() |
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10 . 如图,已知正方体
的棱长为1,O为底面ABCD的中心,
交平面
于点E,点F为棱CD的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/26/25001bbd-4619-409e-8f34-ec2c83ec925c.png?resizew=152)
A.![]() | B.异面直线BD与![]() ![]() |
C.点![]() ![]() ![]() | D.过点![]() ![]() |
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2023-09-14更新
|
556次组卷
|
2卷引用:黑龙江省双鸭山市第一中学2023-2024学年高二上学期开学考试数学试题