名校
解题方法
1 . 如图,正方体
的棱长为1,线段
上有两个动点
,
,且
,则下列结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/88b03ac6-f308-461c-aa28-85da8c02888a.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f115f2683c0422042f1846450885e7fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/88b03ac6-f308-461c-aa28-85da8c02888a.png?resizew=158)
A.线段![]() ![]() ![]() |
B.![]() ![]() |
C.三棱锥![]() |
D.![]() ![]() |
您最近一年使用:0次
2021-03-23更新
|
328次组卷
|
5卷引用:江苏省苏州中学园区校2020-2021学年高三上学期8月期初调研数学试题
名校
2 . 在棱长为1的正方体
中,P为底面ABCD内(含边界)一点.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.若![]() |
B.若![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
3 . 棱长为1的正方体
中,
是正方形
(含边界)上的动点,若
与
垂直,下列结论成立的是( )
![](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/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24006d28116bc097933cc90bcc0ea69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
A.![]() ![]() | B.动点![]() ![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
解题方法
4 . 如图,在棱长为2的正方体
,中,
为棱
上的中点,
为棱
上的点,且满足
,点
,
,
,
,
为过三点
,
,
的平面
与正方体
的棱的交点,则下列说法正确的是
![](https://img.xkw.com/dksih/QBM/2020/12/17/2616085536923648/2618297924075520/STEM/e5bcb7eb-aa98-45a4-b15e-330b2320cb5c.png)
![](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/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40863968c33b12a827c8948be66c0f93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212a67f115d1cbe69f100b489babe5f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2020/12/17/2616085536923648/2618297924075520/STEM/e5bcb7eb-aa98-45a4-b15e-330b2320cb5c.png)
A.![]() | B.三棱锥的体积![]() |
C.直线![]() ![]() ![]() | D.![]() |
您最近一年使用:0次
2020-12-20更新
|
609次组卷
|
2卷引用:辽宁省沈阳市重点高中联合体2020-2021学年高三上学期12月联考数学试题
5 . 如图,已知正方体
的棱长为
,E是棱CD上的动点.则下列结论中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c61a0873918aae6c4bbc3c515477d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/2020/12/17/2616130018590720/2617047764131840/STEM/9890a0bc67614cbdb597829b532fb10c.png?resizew=162)
A.![]() |
B.二面角![]() ![]() |
C.三棱锥![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
解题方法
6 . 如图,在长方体
,中,
,
,
、
、
分别是
,
,
的中点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/94bfd639-eff9-45d5-b654-0e228e8c8440.png?resizew=203)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d01e3a09bce380379426636aa55081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/94bfd639-eff9-45d5-b654-0e228e8c8440.png?resizew=203)
A.![]() |
B.![]() ![]() |
C.若点P在平面ABCD内,且![]() ![]() ![]() |
D.若点Q在平面ABCD内,且![]() ![]() ![]() |
您最近一年使用:0次
2020-12-13更新
|
366次组卷
|
2卷引用:湖南省五市十校2020-2021学年高三上学期第二次大联考数学试题
名校
解题方法
7 . 如图,在直三棱柱
中,
,
分别是
的中点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/3ee1969f-c12f-4314-91d5-fb15165a94df.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c40ebd91973b50665276dd1556b715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7afe78487020fe20d0dbd3e7c636f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/3ee1969f-c12f-4314-91d5-fb15165a94df.png?resizew=160)
A.直线![]() ![]() |
B.![]() ![]() |
C.四棱锥![]() ![]() |
D.四棱锥![]() ![]() |
您最近一年使用:0次
2020-12-03更新
|
592次组卷
|
2卷引用:河北省唐山市开滦二中2020-2021学年高二上学期期中数学试题
名校
解题方法
8 . 如图,正方体
的棱长为1,点M,N分别为线段
,
上的动点,且
,则下列四个结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/e3845958-f826-4fc8-a6f5-5a455541af90.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b57c49759a2e0b9af5d6db5e7b7ce1b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/16/e3845958-f826-4fc8-a6f5-5a455541af90.png?resizew=164)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
9 . 如图所示,正方体
的棱长为1,
分别是棱
的中点,过直线
的平面分别与棱
交于
,设
,则正确的说法是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/375ed89d-b2e6-4ad1-82e9-b77e8ff5027d.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b1d726cf581f600890723a3cf6cdb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8db934d1174fb0f07abe18ac353b4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b2d1674d45273b146bef2fcfbdb2ec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/23/375ed89d-b2e6-4ad1-82e9-b77e8ff5027d.png?resizew=185)
A.四边形![]() |
B.若四边形![]() ![]() ![]() |
C.若四棱锥![]() ![]() ![]() |
D.若多面体![]() ![]() ![]() |
您最近一年使用:0次
2020-11-20更新
|
809次组卷
|
3卷引用:广东省茂名市五校联盟2021届高三上学期第一次联考数学试题
广东省茂名市五校联盟2021届高三上学期第一次联考数学试题福建省厦门双十中学2021届高三12月月考数学试题(已下线)黄金卷04-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(山东高考专用)
名校
解题方法
10 . 已知三棱锥
中,
为
中点,
平面
,
,
,则下列说法中正确的是( )
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9b8e7befcb7881c294070175b1a554.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2020-11-11更新
|
620次组卷
|
4卷引用:湖南省长沙市雅礼中学2020-2021学年高三上学期月考(三)数学试题
湖南省长沙市雅礼中学2020-2021学年高三上学期月考(三)数学试题(已下线)专题20 立体几何综合——2020年高考数学母题题源解密(山东、海南专版)(已下线)考点26 空间直线、平面的平行-备战2021年新高考数学一轮复习考点一遍过广东省汕头市潮阳区2020-2021学年高二上学期期末数学试题