名校
1 . 已知
、
是两条不重合的直线,
、
是两个不重合的平面,以下命题:
①若
,
,则
;②若
,
,
,
,则
;
③若
,
,
,则
;④若
,
,
,则
.
其中正确命题的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209323a7a4d015f7e570ec578c1731f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01d7aa51bf4f95c4b12ae9dcb7eb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0d37b44de48de51555fa95d94e33f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01d7aa51bf4f95c4b12ae9dcb7eb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3bdd7a1a12d66a8b32e239fd6886a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a93a52c2b943e4c70ace99ed802d2b5.png)
其中正确命题的个数是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:福建省连江第一中学2023届高三上学期期中数学试题
2 . 已知m,n是空间中两条不同的直线,
,
是两个不同的平面,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() | D.若![]() ![]() ![]() |
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4卷引用:福建省南平市浦城县第三中学2023届高三上学期期中测试数学模拟卷试题(1)
3 . 在正方体
中,
为棱
上的动点,
分别为线段
,
上的动点,且
,则以下结论中正确的是( )
![](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/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d3e23df18467bfd67e766de0dfbbdf0.png)
A.![]() ![]() | B.三棱锥![]() |
C.![]() | D.平面![]() ![]() |
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4 . 如图,设E,F分别是长方体
的棱CD上的两个动点,点E在点F的左边,且满足
,有下列结论:( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/21/d5f0b1de-7aeb-45f6-9e1f-358403232564.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366e62778cd38f62e722b73d8cb9a542.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/21/d5f0b1de-7aeb-45f6-9e1f-358403232564.png?resizew=160)
A.![]() ![]() |
B.三棱锥![]() |
C.![]() ![]() |
D.平面![]() ![]() |
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5 . 四棱台
的底面ABCD是正方形,
平面ABCD,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ecf072589c0f901d92f6bda111d841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50cb59da6e7882e4328b766777ee15d.png)
A.该四棱台的体积为![]() | B.平面![]() ![]() |
C.直线![]() ![]() | D.直线![]() ![]() |
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6 . 设
,
是两个不同平面,m,n是两条直线,下列命题中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
7 . 已知
是不同的平面,
是两条不重合的直线,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437779278075fd37c29b8edfdaac935c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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解题方法
8 . 已知三棱锥
外接球的球心为
,外接球的半径为
,
,
,
(
为正数),则下列命题是真命题的是( )
![](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/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566b100fb2ebe3d208f9b6527934218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c383691e8d740830a865b12d66f7633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0c26071fa1ebab92b8e750fd50d828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.存在唯一一点![]() ![]() ![]() |
D.![]() ![]() |
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5卷引用:福建省2022届高三毕业班4月百校联合测评数学试题
福建省2022届高三毕业班4月百校联合测评数学试题河北省衡水市2022届高三二模数学试题(已下线)考点16 空间几何体-1-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)2022年新高考原创密卷数学试题(六)山西省朔州市怀仁市第一中学2023届高三三模数学试题
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解题方法
9 . 如图,以等腰直角三角形斜边
上的高
为折痕,把
和
折成互相垂直的两个平面后,某学生得出下列四个结论,其中错误的是( )
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854509078249472/2854779060002816/STEM/ae886fe8d05e484791bf89a6f8730274.png?resizew=373)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854509078249472/2854779060002816/STEM/ae886fe8d05e484791bf89a6f8730274.png?resizew=373)
A.![]() |
B.![]() |
C.平面![]() ![]() |
D.三棱锥![]() |
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10 . 如图,在长方体
中,
,
,
,下列说法中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/c12172f3-9398-4f75-a4de-8b09d439c2c4.png?resizew=141)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f656e1d1f68954e5f06de8958f6a9310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1192b3111a6dad01bba5227472bb4072.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/c12172f3-9398-4f75-a4de-8b09d439c2c4.png?resizew=141)
A.直线![]() ![]() |
B.平面![]() ![]() |
C.异面直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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2021-08-08更新
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2卷引用:福建省三明第一中学2021-2022学年高一下学期第二次月考数学试题