在棱长为2的正方体
中,
分别是
,
,
的中点,则下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9369aed2d8309af46ac3eaffb9cce537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e97fcdcfd6183b976a61ef3222c607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
A.![]() ![]() |
B.![]() ![]() |
C.多面体![]() |
D.平面![]() ![]() |
23-24高一下·江苏南通·期中 查看更多[4]
江苏省南通市2023-2024学年高一下学期5月质量监测数学试题(已下线)6.5.1直线与平面垂直-【帮课堂】(北师大版2019必修第二册)福建省宁德市博雅培文学校2023-2024学年高一下学期5月月考数学试题陕西省西安市南开高级中学2023-2024学年高一下学期五月月考数学试卷
更新时间:2024-06-11 11:46:43
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适中
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名校
解题方法
【推荐1】已知正方体
棱长为
,
为
上的动点,
平面
.下面说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/11/5/2844775376912384/2849546182082560/STEM/3d7c0bb3cf594497a8afca5919a4e7c6.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
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![](https://img.xkw.com/dksih/QBM/2021/11/5/2844775376912384/2849546182082560/STEM/3d7c0bb3cf594497a8afca5919a4e7c6.png?resizew=178)
A.已知![]() ![]() ![]() ![]() ![]() |
B.点![]() ![]() ![]() |
C.点![]() ![]() ![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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【推荐2】(多选)如图,在正方体
中,
平面
,垂足为
,则下面结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/026f165b-7491-49be-b18e-a7bc9c0e711a.png?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d70675215ce4afa6a7d134fc073cd91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/026f165b-7491-49be-b18e-a7bc9c0e711a.png?resizew=148)
A.直线![]() |
B.直线![]() |
C.垂直于直线![]() |
D.过直线![]() |
您最近一年使用:0次
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【推荐1】已知正四面体
是棱
上的动点,
是
在平面
上的投影,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d69f49742d577229559c4a47bd9e84.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
A.当![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() |
D.当![]() ![]() ![]() ![]() |
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【推荐2】如图所示,点A,B,C,M,N为正方体的顶点或所在棱的中点,则下列满足
平面ABC的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d2bbf2309b4ff8599f57bca4203e90.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐1】在正方体
中,若
,
分别为
,
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/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
A.直线![]() ![]() | B.直线![]() ![]() |
C.平面![]() ![]() | D.平面![]() ![]() |
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【推荐2】一副三角板由两个直角三角形组成,如图所示,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5158a1cea978edcdd6cbaface415bbc.png)
且
,现将两块三角板拼接在一起,得到三棱锥
,取
和
中点
、
,则下列判断中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/15/7d31a959-728e-4f2f-b27d-5c70c9ad202c.png?resizew=319)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5158a1cea978edcdd6cbaface415bbc.png)
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A.直线![]() ![]() |
B.三棱锥![]() |
C.![]() ![]() |
D.设面![]() ![]() ![]() ![]() |
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