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解题方法
1 . 已知正三棱柱
中,点
分别是所在棱的中点,则下列图形中,满足
平面
的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e64cd7d049fd830287a6fb6b3a5870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-12-26更新
|
340次组卷
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4卷引用:江西省鹰潭市第一中学2021届高三上学期第四次月考数学(文)试题
20-21高一·浙江·期末
名校
2 . 正方体
的棱长为2,E,F,G分别为BC,
,
的中点,则( )
![](https://img.xkw.com/dksih/QBM/2020/12/24/2621083896774656/2621678643175424/STEM/8c0939c8650049709858315dc76facd6.png?resizew=253)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/2020/12/24/2621083896774656/2621678643175424/STEM/8c0939c8650049709858315dc76facd6.png?resizew=253)
A.直线![]() |
B.直线![]() |
C.平面AEF截正方体所得的截面面积为![]() |
D.点C与点G到平面AEF的距离相等 |
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2020-12-25更新
|
924次组卷
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7卷引用:陕西省西安中学2020-2021学年高三上学期第四次月考数学(文)试题
陕西省西安中学2020-2021学年高三上学期第四次月考数学(文)试题(已下线)【新东方】双师115陕西省西安中学2020-2021学年高三上学期12月月考文科数学试题浙江省丽水外国语实验学校2020-2021学年高二上学期11月第二次月考数学试题(已下线)上海市华东师范大学第二附属中学2022届高三6月模拟数学试题(已下线)第19讲 立体几何初步-2(已下线)专题10立体几何初步必考题型分类训练-1
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3 . 若m、n是两条不重合的直线,
、
为两个不重合的平面,下列说法正确的有( )
![](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
2020-12-18更新
|
595次组卷
|
6卷引用:江苏省镇江市2020-2021学年高二上学期12月校际联考数学试题
江苏省镇江市2020-2021学年高二上学期12月校际联考数学试题江苏省镇江市第一中学2020-2021学年高二上学期第二次月考数学试题(已下线)专题11.3空间中的垂直关系(B卷提升篇)-2020-2021学年高一数学必修第四册同步单元AB卷(新教材人教B版)广东省广州市十六中2021-2022学年高一下学期期中数学试题辽宁省铁岭市昌图县第一高级中学2021-2022学年高一下学期期末数学试题江西省吉水县第二中学2022-2023学年高二上学期开学测试数学试题
4 . 在三棱柱
中,
底面ABC,E和F分别是线段
和
的中点,如图.下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/2020/12/15/2614860837584896/2616007788527616/STEM/97d12b718e3d4bb696a92eba17a2ff50.png?resizew=183)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8684078379a9e6b209068e1de693af0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eac5405933e725cc5c970237d63d511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1b2210b77b2cf71d12fac1cbb6394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa78ace12e5dca050ba2c70880d4d8ed.png)
![](https://img.xkw.com/dksih/QBM/2020/12/15/2614860837584896/2616007788527616/STEM/97d12b718e3d4bb696a92eba17a2ff50.png?resizew=183)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2020-12-17更新
|
156次组卷
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2卷引用:安徽省蚌埠市田家炳中学2020-2021学年高二上学期12月月考数学(理)试题
名校
5 . 如图,四棱锥
的底面为正方形,
底面
,则下列结论:
①
平面
;
②
平面
;
③
与
所成的角等于
与
所成的角;
④直线
与平面
所成角的大小为
.
其中,正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb2e071d4e01107dcf7d95cbb86b415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307807ee10071bafbe922eb18d2517d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef796b46e68fe77b117ff0483d2370c.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd55674bc07e964ed6367e73b6f92ff1.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
④直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd55674bc07e964ed6367e73b6f92ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
其中,正确结论的序号是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/bc9570d0-23c5-4ea5-af53-2a659d36c045.png?resizew=182)
您最近一年使用:0次
6 . 已知直线
平面
,直线
平面
,下面四个结论:①若
,则
;②若
,则
;③若
,则
;④若
,则
.其中正确的结论是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dbb94ae4b6029288fb461976d40e307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983307d4345e724d9dd44935274843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e380108ba2cf04e68a5a9393d2b921c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dedfa42c16dd0aefa2928a6e41f3dba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff259ba50b735db32427fc0ebfbdfdaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18839099fb51cb1dda11653615ad0a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dedfa42c16dd0aefa2928a6e41f3dba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e380108ba2cf04e68a5a9393d2b921c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18839099fb51cb1dda11653615ad0a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff259ba50b735db32427fc0ebfbdfdaf.png)
A.①②④ | B.③④ | C.②③ | D.①④ |
您最近一年使用:0次
7 . 已知
,
表示两条不同直线,
表示平面,下列说法正确的是( )
![](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)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2020-12-13更新
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225次组卷
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2卷引用:四川省成都市高新区高2021届高三第三次阶段性考试理科数学试题
8 . 如图,在三棱柱
中,
,
,
,点
在线段
上,且
,则下列说法错误的是( )
![](https://img.xkw.com/dksih/QBM/2020/12/10/2610982517997568/2613060051755008/STEM/5aca2e6881c442a2b9c241b1a66cf657.png?resizew=209)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1baa3d0db9ad31d33c2883a6efed1dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59c3fbf695b60c194cec3865e5d762d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff29971ccc633d89832ffa9bd54afa3.png)
![](https://img.xkw.com/dksih/QBM/2020/12/10/2610982517997568/2613060051755008/STEM/5aca2e6881c442a2b9c241b1a66cf657.png?resizew=209)
A.![]() ![]() | B.![]() |
C.平面![]() ![]() | D.![]() ![]() |
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9 . 在正方体
中,M,N分别是线段AB1,BC1的中点,以下结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/40bcf3ef-5382-4cab-9dda-199884fc295f.png?resizew=170)
①直线
直线
;②直线
平面
,;③
.
其中正确的是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/40bcf3ef-5382-4cab-9dda-199884fc295f.png?resizew=170)
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93cf663ee2bf1ac5c43f4306fa0cf250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9147a177a4e548e2003c4814e39df76a.png)
其中正确的是
您最近一年使用:0次
2020-12-11更新
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231次组卷
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2卷引用:江西省九江五校2020-2021学年高二上学期期中联考数学(文)试题
10 . 在长方体
中,
、
分别是
和
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2020-12-08更新
|
294次组卷
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2卷引用:北京市平谷区第五中学2020-2021学年高二上学期期中考试数学试题