名校
解题方法
1 . 如图,棱长为2的正方体
中,E、F分别是校AB,AD的中点,G为棱
上的动点.
![](https://img.xkw.com/dksih/QBM/2021/2/27/2666927134834688/2668381270958080/STEM/18cffa4b-24f6-47ce-bd6c-00713e6d2427.png?resizew=232)
(1)当G是
的中点时,判断直线
与平面EFG的位置关系,并加以证明;
(2)若直线EG与平面
所成的角为60°,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/2021/2/27/2666927134834688/2668381270958080/STEM/18cffa4b-24f6-47ce-bd6c-00713e6d2427.png?resizew=232)
(1)当G是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
(2)若直线EG与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d58bf185026e4f6b568f1d5677074b.png)
您最近一年使用:0次
2021-03-01更新
|
245次组卷
|
3卷引用:贵州省贵阳市2021届高三适应性考试数学(文)试题(一)
2 . 如图,四棱锥
的底面
是边长为
的菱形,
,已知
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/c98ba8df-b2ad-46af-84cf-3742204e142b.png?resizew=183)
(1)求证:
;
(2)求二面角
的余弦值;
(3)求三棱锥
的体积.
![](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/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b2f446cccf2652c090e99a75beb3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d906ee0d60f3f4654fb516fe4973413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c85aeab3aeaf4367b711da8cde2e8bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/c98ba8df-b2ad-46af-84cf-3742204e142b.png?resizew=183)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4125524caac016727c80d2722c5ba3.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db04e82f03e6216886d416b35abe85a3.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95e78927443bbadb5bf60f1c836ea24.png)
您最近一年使用:0次
名校
解题方法
3 . 在四棱锥
中,底面
是边长为2的正方形,
,
,
为
的中点,且
.
![](https://img.xkw.com/dksih/QBM/2021/1/23/2642435271172096/2645371961876480/STEM/0d3a8eeca3b04bdc8217ca6de23e248d.png?resizew=162)
(1)求证:
平面
;
(2)求四棱锥
的体积.
![](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/d0453cfd7e92bf7746a88280b9e7b580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.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/e6699ab8ef5ac674271983738e6b522b.png)
![](https://img.xkw.com/dksih/QBM/2021/1/23/2642435271172096/2645371961876480/STEM/0d3a8eeca3b04bdc8217ca6de23e248d.png?resizew=162)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db807b09cc550f476b3f8fa0c6a14425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2021-01-27更新
|
154次组卷
|
2卷引用:贵州省盘州市2021届高三上学期第一次模拟考试文科数学试题
4 . 如图,在四棱锥
中,底面
是矩形,平面
平面
,
为
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/5c3e6154-6d80-4b7b-9415-8147ce5ec61a.png?resizew=169)
(1)证明:平面
平面
;
(2)求三棱锥
的体积.
![](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/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b5fdbef7ac8859e74fd1d79cb47392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db86a481972bd2dc553889617002d146.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/5c3e6154-6d80-4b7b-9415-8147ce5ec61a.png?resizew=169)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39282bdf319f30d7bc261e2e3ab3b1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df5935c893580c77ab6fa6eb0a70bdb.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf9718967af7a01c5b4866ea6f73bbb.png)
您最近一年使用:0次
2021-04-09更新
|
107次组卷
|
2卷引用:贵州省安顺学院附属高级中学2021届高三上学期阶段性检测数学(文)(三)试题
5 . 如图,在三棱锥
中,
,
,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/735bc996-46ed-413f-b250-f0f56adb6c05.png?resizew=130)
(1)求证:平面
平面
;
(2)若
,
是面积为
的等边三角形,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddec9dcc57db89ccf21303f13fccda9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4fce8e923062b9779553d6f282895b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/735bc996-46ed-413f-b250-f0f56adb6c05.png?resizew=130)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f526e2fe627bb4ddebe708c07d0a22fc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f63075fdeeb9e765dd696c4ff43ba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e71ed3405c35f152aa03aba711f524a.png)
您最近一年使用:0次
2020-11-21更新
|
1328次组卷
|
9卷引用:贵州省瓮安中学高三2021届6月关门考试数学(文)试题
贵州省瓮安中学高三2021届6月关门考试数学(文)试题河南省焦作市2020—2021学年高三年级第一次模拟考试数学(文)试题云南省红河州2021届高中毕业生第一次复习统一检测数学(文)试题(已下线)第八单元 立体几何 (A卷 基础过关检测)-2021年高考数学(文)一轮复习单元滚动双测卷(已下线)调研测试四(B卷 滚动提升检测)-2021年高考数学(文)一轮复习单元滚动双测卷江西省宜春市奉新县第三中学2021届高三上学期第三次月考数学(文)试题(已下线)专题34 立体几何解答题中的体积求解策略-学会解题之高三数学万能解题模板【2022版】四川省宜宾市叙州区第一中学校2022-2023学年高三下学期开学考试数学(文)试题宁夏石嘴山市第三中学2023-2024学年高三上学期期中考试文科数学试卷
名校
解题方法
6 . 如图,在三棱锥
中,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/efa22ffa-88cb-42d2-9a25-df1f8827656d.png?resizew=152)
(1)证明:
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c24b7a9466a1e35328a8a4b1ba7fa84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41f231971dfbceec98be731b808a0f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c484c9fe3c95c21012eed89172171992.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/efa22ffa-88cb-42d2-9a25-df1f8827656d.png?resizew=152)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbd7c2767c106faf27d6a97ebc8e739.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf9718967af7a01c5b4866ea6f73bbb.png)
您最近一年使用:0次
2020-11-12更新
|
726次组卷
|
3卷引用:贵州省思南中学2021届高三上学期期中考试数学(文)试题
贵州省思南中学2021届高三上学期期中考试数学(文)试题贵州省蟠龙高级中学2020-2021学年高二上学期第二次月考数学(文)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)
名校
7 . 如图,在四棱锥
中,底面
为平行四边形,
,
,
为
的中点,
平面
,
,
为
的中点.
(1)证明:
平面
;
(2)求直线
与平面
所成角的正切值.
(3)求三棱锥
的体积.
![](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/bd7e4e8c2835c4a880cd4430800e1f8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dcd50b9f6dba73b160297efd9574c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/3bf79581-8c0a-45bd-9901-0faefab5f9f3.png?resizew=187)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30067b7b236d17af8a462f96a58d11bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb304d905125170bebfada27e7ed8960.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f4ff060b8b0617d0c41cc164d14029.png)
您最近一年使用:0次
解题方法
8 . 在四棱锥P-ABCD中,底面ABCD是直角梯形,AB
CD,∠ABC=90°,AB=PB=PC=BC=2CD=2,平面PBC⊥平面ABCD.
(1)求证:AB⊥平面PBC;
(2)求三棱锥C-ADP的体积;
(3)在棱PB上是否存在点M,使CM
平面PAD?若存在,求
的值.若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/4/4fc1c2ef-bc51-407d-97c8-7277426e28a6.png?resizew=165)
(1)求证:AB⊥平面PBC;
(2)求三棱锥C-ADP的体积;
(3)在棱PB上是否存在点M,使CM
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b505e0df1131e3a93fc81d13f6e224e7.png)
您最近一年使用:0次
9 . 据说伟大的阿基米德逝世后,敌军将领马塞拉斯给他建了一块墓碑,在墓碑上刻了一个如图所示的图案,图案中球的直径、圆柱底面的直径和圆柱的高相等,圆锥的顶点为圆柱上底面的圆心,圆锥的底面是圆柱的下底面.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/b387f30d-d7c1-422b-9d35-f92b8bd46e2b.png?resizew=98)
(1)试计算出图案中圆柱与球的体积比:
(2)假设球半径
,试计算出图案中圆锥的体积和表面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/b387f30d-d7c1-422b-9d35-f92b8bd46e2b.png?resizew=98)
(1)试计算出图案中圆柱与球的体积比:
(2)假设球半径
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8176754726d2194c890e80df1a1f1c3a.png)
您最近一年使用:0次
2020-09-04更新
|
629次组卷
|
5卷引用:贵州省毕节市威宁县2019-2020学年高一下学期期末考试数学试题
名校
解题方法
10 . 如图,在四棱锥
中,底面
是平行四边形,
,侧面
底面
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/8/23/2534261204631552/2542443310964736/STEM/06305e9c-8810-4ede-9ec2-5ba57a5f9a33.png?resizew=153)
(1)求证:
平面
;
(2)过
的平面交
于点
,若
,求三棱锥
的体积.
![](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/c5b0382c28547d3834ca71f3f0677695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99998f33ad6edab18180627d4903dcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcaa14690732aac2d2b8e2561ebbc047.png)
![](https://img.xkw.com/dksih/QBM/2020/8/23/2534261204631552/2542443310964736/STEM/06305e9c-8810-4ede-9ec2-5ba57a5f9a33.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd9f5de9503f4d71588c16b0ac33742a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd3b6cf2e17d221c8aaeb70e81ef48.png)
您最近一年使用:0次
2020-09-04更新
|
385次组卷
|
3卷引用:贵州省毕节市威宁县2019-2020学年高一下学期期末考试数学试题