1 . 如图,在三棱柱
中,直线
平面
,平面
平面
.
;
(2)若
,在棱
上是否存在一点
,使得四棱锥
的体积为
?若存在,指出点
的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ad7c180d6d084ecb25f23cb6fe9b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1de5964353beb55c5058b2a431eecaf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9008767d531e72e94dee8452aedca97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de04ac3f924d139c7ea15a0b230db6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2024-01-04更新
|
980次组卷
|
9卷引用:四川省眉山市2024届高三一模数学(文)试题
四川省眉山市2024届高三一模数学(文)试题四川省遂宁市2024届高三一模数学(文)试题四川省广安市2024届高三一模数学(文)试题四川省雅安市2024届高三一模数学(文)试题四川省资阳市2024届高三二模数学(文)试题(已下线)第15讲 8.6.3平面与平面垂直(第2课时)-【帮课堂】(人教A版2019必修第二册)(已下线)重难点12 立体几何必考经典解答题全归类【九大题型】(已下线)专题8.8 空间中的线面位置关系大题专项训练【七大题型】-举一反三系列(已下线)专题突破:空间几何体的动点探究问题-同步题型分类归纳讲与练(人教A版2019必修第二册)
2 . 三棱台
中,若
面
,
分别是
中点.
(1)求证:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ecf072589c0f901d92f6bda111d841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d13df842e0c8e5fdd73648470371bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3676391efa2ac62958c633b7943e746.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/26/f63e80a4-18df-468a-99f0-93721ad828cb.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2e72bc4f73790da7c76e46767b4fd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a3f5c4436466bed86c25c5f26ccbeb.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a3f5c4436466bed86c25c5f26ccbeb.png)
您最近一年使用:0次
2023-10-09更新
|
589次组卷
|
3卷引用:四川省仁寿第一中学校南校区2023-2024学年高二上学期10月月考数学试题
名校
3 . 如图,在四边形
中,
,点E,F分别在
上运动,且
,现将四边形
沿
折起,使平面
平面
.
(1)若E为
的中点,求证:
平面
;
(2)求三棱锥
体积的最大值,并求此时直线AE与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432ec7c0fdfbcc8c2b210ed18f3dc64b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46c696ff5f123a482bae81cf9a1b570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25eff69a4a0dc7a7ab183843303d333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c674dc5024374f53920947c4cf4baf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2f3df5713a423887c16e6355236372.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/28/18b5bf98-d92c-4cfc-8ff0-c21805296dc7.png?resizew=341)
(1)若E为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68744081315689b14c9c7a2b74100f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
您最近一年使用:0次
4 . 如图1,在梯形
中,
∥
,
,线段
的垂直平分线与
交于点
,与
交于点
,现将四边形
沿
折起,使
分别到点
的位置,得到几何体
,如图2所示.
(1)判断线段
上是否存在点
,使得平面
∥平面
,若存在,求出点
的位置;若不存在,请说明理由.
(2)若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](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/002f82b05fc164e17d72092d368857c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0f067a2a348ceb24a408f82992eab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85227bdb3148e51177d6e26523cbffd6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/29/e20e4e16-9e07-4bac-97af-2724e27f8806.png?resizew=255)
(1)判断线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1dcba40b263c1119ea0a36651c7812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c262229271a283b8293fe3f4f57f97e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1769cd4d629d8ffb00e8511cfda306b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffa26c05e91a5bf38c4810ef775e6ec.png)
您最近一年使用:0次
解题方法
5 . 如图,在四棱锥
中,
,
,
,
、
分别是棱
,
的中点,且
平面
.
(1)证明:
;
(2)已知
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dbd64b72a96b73a76b4cdad76ecaf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1328e05d150f86dbe18656662eaa8f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c5ace226a547e68702df548b08cb5a.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7175df06e33cad4e6bbc3f2f6b0a2986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/23/7c38cd0d-ac15-4aa5-af77-cc5f39d665c8.png?resizew=208)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6586b8c93cb52c59903ebc1a646d659.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
解题方法
6 . 如图,在四棱锥
中,
面ABCD,
,
,
,
,E是PA的中点,G在线段AB上,且满足
.
(1)求证:
∥平面PBC
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb30f1aa1c1c1fe2ca77e30e54b5fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559470787fd107b8781b8be7e831535d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb25434985431dcc5c33fcbb3354b786.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/0a65e3f3-63c6-4108-83d9-269015556e1f.png?resizew=151)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66de28730017cae64f02a46463c660e.png)
您最近一年使用:0次
名校
解题方法
7 . 如图,四边形
中,
,
分别在
上,
.现将四边形
沿
折起,使得平面
平面
.
时,是否在折叠后的
上存在一点
,使得
平面
?若存在,求出
点位置;若不存在,说明理由;
(2)设
,问当
为何值时,三棱锥
的体积有最大值?并求出这个最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe95fadb7e9012990e5264b4e46bf2ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46c696ff5f123a482bae81cf9a1b570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058f36d315245b63a811d5c6f348c17b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c674dc5024374f53920947c4cf4baf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6240d4cf0fb44aa1e6bdaf2a4bdfb37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc90c2d45477e166b02359525f40aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5d46cc6946821619e937d12d30dc83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c29bf5a05dd46f6e03dfd22c32f7ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b67046592a3153a442165064287fcf.png)
您最近一年使用:0次
2023-09-15更新
|
150次组卷
|
8卷引用:四川省眉山市眉山中学校2022-2023学年高二上学期期末数学文科试题
四川省眉山市眉山中学校2022-2023学年高二上学期期末数学文科试题人教B版 必修2 必杀技 第一章 专题2 空间线、面位置关系人教A版(2019) 必修第二册 必杀技 第8章 专题3空间线、面位置关系福建省泰宁第一中学2020-2021学年高二上学期学分认定暨第一次阶段考试数学试题苏教版(2019) 必修第二册 必杀技 第13章 立体几何初步 专题4 空间线、面位置关系安徽省滁州市定远县育才学校2021-2022学年高一下学期第一次月考数学试题(已下线)核心考点08空间直线、平面的垂直-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)(已下线)6.6简单几何体的再认识-【帮课堂】(北师大版2019必修第二册)
8 . 如图,在四棱锥中,平面
平面ABCD,
,
,
,
,
,
,
.
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(2)在线段PB上是否存在点M,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5865d488a9cf1181016fd2e866177cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8180b12d96caf2e6b3ca28a474185e41.png)
您最近一年使用:0次
2023-04-01更新
|
829次组卷
|
4卷引用:四川省仁寿县铧强中学2023届高三三模文科数学试题
四川省仁寿县铧强中学2023届高三三模文科数学试题陕西省安康中学2023届高三下学期3月质量检测文科数学试题(已下线)专题06空间位置关系的判断与证明(已下线)专题06 立体几何 第一讲 立体几何中的证明问题(分层练)
9 . 如图,在三棱锥
中,H为
的内心,直线AH与BC交于M,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/1/b0f700dc-2469-4978-aa58-54208d429595.png?resizew=193)
(1)证明:平面
平面ABC;
(2)若
,
,
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dbe55407b556be48d67cde5c5dc94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0c94e17dd00da31cd38d8d2a0f6ac5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/1/b0f700dc-2469-4978-aa58-54208d429595.png?resizew=193)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392469b357b12b998528499929366c02.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91708c4508371f08556e76e31c7cb9ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509f3acc7bcb24780ca0bf00c33e5399.png)
您最近一年使用:0次
2023-03-30更新
|
1726次组卷
|
10卷引用:四川省眉山市2023届高三第二次诊断性考试数学(文)试题
四川省眉山市2023届高三第二次诊断性考试数学(文)试题四川省自贡市2023届高三下学期第二次诊断性考试数学(文)试题四川省遂宁市2023届高三第二次诊断性考试数学(文)试题(已下线)专题06空间位置关系的判断与证明(已下线)高一数学下学期期中模拟试题01(平面向量、解三角形、复数、立体几何)(已下线)专题训练:线线、线面、面面垂直证明四川省九市联考(雅安、眉山、资阳、遂宁、广安、广元、自贡、内江、乐山)2023届高三下学期第二次诊断数学(文)试题四川省广安市2023届高三第二次诊断数学(文)试题(已下线)专题10 立体几何综合-1陕西省联盟学校2023届高三第三次大联考数学(文)试题
名校
解题方法
10 . 如图,在三棱柱
中,侧面
为正方形,
平面ABC,
,
,E,F分别为棱AB和
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/565f186d-a895-45c4-9a6b-4555461a3994.png?resizew=178)
(1)在棱
上是否存在一点D,使得
平面EFC?若存在,确定点D的位置,并给出证明;若不存在,试说明理由;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/565f186d-a895-45c4-9a6b-4555461a3994.png?resizew=178)
(1)在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8355349fbe4f1ff9350e411a621b4d.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0adfdc9ada431b02ecf9858a2eab2506.png)
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2022-12-30更新
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6卷引用:四川省眉山市2023届高三第一次诊断性考试数学(文)试题
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