解题方法
1 . 如图所示,四棱锥
的底面是边长为2的正方形、
底面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/15a340be-40bf-4780-9c62-c495c469b0bc.png?resizew=191)
(1)求证:
平面
;
(2)若
为
的中点,三棱锥
的体积为
,求四棱锥
的侧面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a4b8b69b419c557ba61a2bdfaf4066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/15a340be-40bf-4780-9c62-c495c469b0bc.png?resizew=191)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f253e586f0016cf9ad69dcbc142ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a4b8b69b419c557ba61a2bdfaf4066.png)
您最近一年使用:0次
解题方法
2 . 已知三棱锥中
,
平面
,
,
.
、
、
分别为
、
、
的中点.(锥体体积公式
,其中
为底面面积,
为高)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/e3d0ae1e-0b5d-4256-ad9a-de36de263e32.png?resizew=167)
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eaa1a14893960a7032a20c06de41ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aedf65d7d930fdb972d4802c0dea8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7309683ff41a94e5c5cfeabaeda52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/e3d0ae1e-0b5d-4256-ad9a-de36de263e32.png?resizew=167)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b81fb655624ff75a5eab94de9b8c8e9.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3daec02423dbc4bf84b8ec462d12b683.png)
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解题方法
3 . 一个空间几何体的三视图如图所示,该几何体的体积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/acb1fe83-27c4-4498-b933-f504409c0feb.png?resizew=230)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/acb1fe83-27c4-4498-b933-f504409c0feb.png?resizew=230)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 若一个与正方体各个面都相切的球的表面积为4π,则此正方体的体积为( )
A.4 | B.1 | C.8 | D.6 |
您最近一年使用:0次
名校
解题方法
5 . 如图,四棱锥
的底面是边长为
的菱形,
底面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/62ce911d-cd9b-4bfd-8021-2ef52137577f.png?resizew=229)
(1)求证:
平面
;
(2)若
,直线
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/62ce911d-cd9b-4bfd-8021-2ef52137577f.png?resizew=229)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e1b9e166b42526737b053ac158c99d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2020-10-27更新
|
295次组卷
|
12卷引用:湖南省2016年普通高中学业水平考试数学试题
湖南省2016年普通高中学业水平考试数学试题2016年湖南省普通高中学业水平考试数学试题黑龙江省牡丹江市第一高级中学2019-2020学年高一7月月考(期末)数学试题黑龙江省牡丹江一中2019-2020学年高一(下)期末数学试题吉林省辽源市田家炳高级中学等友好学校2019-2020学年高一下学期期末考试数学(文)试题黑龙江省鹤岗市第一中学2020-2021学年高二10月月考数学(理)试题黑龙江省双鸭山市第一中学2020-2021学年高二10月月考数学(文)试题江西省上饶市横峰中学2020-2021学年高二上学期第一次月考数学(理,课改班)试题山西省运城市景胜中学2020-2021学年高二上学期10月月考数学(文)试题山西省运城市景胜中学2020-2021学年高二上学期10月月考数学(理)试题云南省昆明师范专科学校附属中学2020-2021学年高二上学期期中考试数学试题江苏省南京市人民中学2020-2021学年高二上学期9月月考数学试题
6 . 如图,在△ABC中,∠B=90°,AB=BC=2,P为AB边上一动点,PD∥BC交AC于点D,现将△PDA沿PD翻折至△PDA1,E是A1C的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/68cb8ec0-496c-47cf-bfc7-4b066d0fae17.png?resizew=160)
(1)若P为AB的中点,证明:DE∥平面PBA1.
(2)若平面PDA1⊥平面PDA,且DE⊥平面CBA1,求四棱锥A1﹣PBCD的体积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/68cb8ec0-496c-47cf-bfc7-4b066d0fae17.png?resizew=160)
(1)若P为AB的中点,证明:DE∥平面PBA1.
(2)若平面PDA1⊥平面PDA,且DE⊥平面CBA1,求四棱锥A1﹣PBCD的体积.
您最近一年使用:0次
2019-10-14更新
|
626次组卷
|
8卷引用:江苏省2024年普通高中学业水平合格性考试数学全真模拟数学试题05
江苏省2024年普通高中学业水平合格性考试数学全真模拟数学试题05云南省名校2019-2020学年高考适应性月考统一考试数学(文)试题(已下线)专题8.5 直线、平面垂直的判定及其性质(讲)-浙江版《2020年高考一轮复习讲练测》(已下线)专题8.5 直线、平面垂直的判定及性质(精讲)-2021年新高考数学一轮复习学与练(已下线)专题8.5 直线、平面垂直的判定及性质(讲)-2021年新高考数学一轮复习讲练测(已下线)期末综合检测05-2020-2021学年高一数学下学期期末专项复习(苏教版2019必修第二册)江苏省南京市金陵中学2020-2021学年高一下学期5月月考数学试题(已下线)专题8.5 直线、平面垂直的判定及性质(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)
解题方法
7 . 四棱锥
中,
,且
平面
,
,
,
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/2020/3/11/2417270448021504/2420159028461568/STEM/051c55e7-1adb-4eb7-bf0e-97c669946e69.png)
(1)证明:
平面
;
(2)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aee33e4af8ef3bf5025d7e630abcfc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/477dc280b77f5640565dbc0ddf24460a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2736c6f5b1436863983cf84cb3d27f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69cd26656a1d8184c599ec174aaca4af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2020/3/11/2417270448021504/2420159028461568/STEM/051c55e7-1adb-4eb7-bf0e-97c669946e69.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
您最近一年使用:0次
8 . 如图1,把棱长为1的正方体沿平面
和平面
截去部分后,得到如图2所示几何体,该几何体的体积为( )
![](https://img.xkw.com/dksih/QBM/2020/3/13/2418820318830592/2419192608874497/STEM/ae41a067cfd649328769b40dcc45673a.png?resizew=195)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9539f8fb13345b449274b67bbda995db.png)
![](https://img.xkw.com/dksih/QBM/2020/3/13/2418820318830592/2419192608874497/STEM/c756e253621b4b479ac773c52c0fe6ff.png?resizew=185)
![](https://img.xkw.com/dksih/QBM/2020/3/13/2418820318830592/2419192608874497/STEM/ae41a067cfd649328769b40dcc45673a.png?resizew=195)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-03-14更新
|
317次组卷
|
2卷引用:浙江省2017年4月普通高中学业水平考试数学试题
9 .
中,
.将
绕直线
旋转一周,则所形成的几何体的体积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2fe734a82ccdc9168b128ff4c5960a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 如图,在四棱锥P-ABCD中,
,
,
,
, PA=AB=BC=2. E是PC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/4a437dc6-bc09-4e3f-8941-89fcbe63e6dd.png?resizew=139)
(1)证明:
;
(2)求三棱锥P-ABC的体积;
(3) 证明:
平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbb05b8b630052ff544249ebd72d95d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db27b7f29d7d01b2692f217bc3079fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf10d92f20501e19d25f6f4159aab89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38cffa0b9b2cf2e5a0f4e2832046815.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/4a437dc6-bc09-4e3f-8941-89fcbe63e6dd.png?resizew=139)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44f4120c94cb7176dc31fcac387b32e.png)
(2)求三棱锥P-ABC的体积;
(3) 证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次