名校
解题方法
1 . 如图,在四棱锥
中,底面
是正方形,
.
(1)求证:
;
(2)若
,设点
为线段
上任意一点(不包含端点),证明,直线
与平面
相交.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44f4120c94cb7176dc31fcac387b32e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/28/fbf42177-3a59-4f77-95fe-9a232bba8df0.png?resizew=155)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545e18836bc7fee22f8f813a6f525d93.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c55aa2447493e51333f865c09e6a432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35708245a5da381178284f5ac7ce9c6.png)
您最近一年使用:0次
名校
解题方法
2 . 如图甲,在四边形
中,
,
.现将
沿
折起得图乙,点
是
的中点,点
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/5/63433e15-0b83-4656-8241-ba9e8490f2d2.png?resizew=448)
(1)求证:
平面
;
(2)在图乙中,过直线
作一平面,与平面
平行,且分别交
、
于点
、
,注明
、
的位置,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4864c21e9664fa9111ede6425b09563a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3185a8075eea774ea1c6298fd1d0f5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8641c4dfb34a79b77598e4e4f904537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/5/63433e15-0b83-4656-8241-ba9e8490f2d2.png?resizew=448)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)在图乙中,过直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,在四棱锥P﹣ABCD中,底面ABCD是菱形,N,M,Q分别为PB,PD,PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/0699aeea-e7c0-49b2-b7ad-b6c5f7e3a6d0.png?resizew=157)
(1)求证:QN
平面PAD;
(2)记平面CMN与底面ABCD的交线为l,试判断直线l与平面PBD的位置关系,并证明.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/0699aeea-e7c0-49b2-b7ad-b6c5f7e3a6d0.png?resizew=157)
(1)求证:QN
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
(2)记平面CMN与底面ABCD的交线为l,试判断直线l与平面PBD的位置关系,并证明.
您最近一年使用:0次
2023-04-20更新
|
4233次组卷
|
10卷引用:江苏省南京市中华中学2020-2021学年高一下学期期中数学试题
江苏省南京市中华中学2020-2021学年高一下学期期中数学试题广东省广州市五中2021-2022学年高一下学期第一次段考数学试题重点题型训练13:第6章平行关系、垂直关系-2020-2021学年北师大版(2019)高中数学必修第二册(已下线)专题训练:线线、线面、面面平行证明第六章 立体几何初步(单元综合检测卷)-【超级课堂】(已下线)重难点专题04 空间直线平面的平行-【同步题型讲义】内蒙古赤峰二中2022-2023学年高一下学期第二次月考数学试题(已下线)第07讲 立体几何大题(11个必刷考点)-《考点·题型·密卷》山东省济宁市微山县第二中学2022-2023学年高一下学期6月月考数学试题山东省威海市乳山市银滩高级中学2023-2024学年高三上学期10月月考数学试题
4 . (1)用中文表述两个平面平行的判定定理,并用数学符号写成“已知...,求证...”的形式后加以证明;
(2)在长方体
中,求证:平面
平面
.
(2)在长方体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/157770e4c9689b87ed922229e1682d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957a3d3c306dfb26ac61c9cbf519622e.png)
您最近一年使用:0次
解题方法
5 . 如图,在直三棱柱
中,
,
,
,E,F分别是棱
、AB的中点.
;
(2)求四棱锥
的体积;
(3)判断直线CF和平面
的位置关系,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209acf15985d1ea1ad86fc4a37e38c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ca15aaec809f117ebbcb740c498e33.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512fe274f5d31999bc59c0a93e083d3a.png)
(3)判断直线CF和平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43cbc92b5f5c26c7f70b52b27616a81.png)
您最近一年使用:0次
名校
6 . 如图,在正方体
中,E、F分别是AB、AA1的中点,求证:
(2)设
,证明:A,O,D三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3b24d1118a02d434ff048751870848.png)
您最近一年使用:0次
2023-01-09更新
|
1219次组卷
|
7卷引用:河北省唐山市开滦第二中学2020-2021学年高一下学期第一次月考数学试题
河北省唐山市开滦第二中学2020-2021学年高一下学期第一次月考数学试题(已下线)8.4空间点、直线、平面之间的位置关系(已下线)6.3.2刻画空间点、线、面位置关系的公理(课件+练习)山东省烟台市爱华学校2022-2023学年高一下学期第二次月中质量检测数学试题(已下线)第一章 点线面位置关系 专题五 共面问题 微点1 立体几何共面问题的解法【培优版】(已下线)13.2.1 平面的基本性质-【帮课堂】(苏教版2019必修第二册)(已下线)第八章:立体几何初步章末重点题型复习(1)-同步精品课堂(人教A版2019必修第二册)
名校
解题方法
7 . 如图,已知
平面
,
为矩形,
分别为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/cfcb4474-ac28-4ea8-88fb-9cb5c734d479.png?resizew=156)
(1)证明:
;
(2)若
,求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbb19cb4eb2d7f3207559eb07355ba2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/cfcb4474-ac28-4ea8-88fb-9cb5c734d479.png?resizew=156)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f479d987bc7abd828c64f9dc745836ab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0498b9374bee2169d323c3bd8d2d23d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cae065ec545de896871ff619390438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
您最近一年使用:0次
2022-12-20更新
|
289次组卷
|
3卷引用:山西省孝义市实验中学2017-2018学年高二上学期第一次月考数学试题
名校
解题方法
8 . 如图,正三棱柱
中,
是
的中点,
.
![](https://img.xkw.com/dksih/QBM/2022/12/3/3123013769371648/3124230754926592/STEM/1f190ebf384c4ffe83b51e995d5774cf.png?resizew=134)
(1)求证:直线
;
(2)判断
与平面
的位置关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d42e97eee705d164e6ac6de9ecd6d1f.png)
![](https://img.xkw.com/dksih/QBM/2022/12/3/3123013769371648/3124230754926592/STEM/1f190ebf384c4ffe83b51e995d5774cf.png?resizew=134)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06769ce64b9bc0a23ead087fc7f8c55e.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba9e20d667d04bf3ee7f55cc795ce01.png)
您最近一年使用:0次
真题
解题方法
9 . 如图,正三棱柱
中,D是
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/87c1c019-44ab-4263-b2c5-1d83a56b5592.png?resizew=134)
(1)求证:直线
;
(2)求点D到平面
的距离;
(3)判断
与平面
的位置关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d42e97eee705d164e6ac6de9ecd6d1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/87c1c019-44ab-4263-b2c5-1d83a56b5592.png?resizew=134)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06769ce64b9bc0a23ead087fc7f8c55e.png)
(2)求点D到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2e84d6e368f8368f8301c4cd66d6dd.png)
(3)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba9e20d667d04bf3ee7f55cc795ce01.png)
您最近一年使用:0次