名校
解题方法
1 . 我市论语广场准备设置一些多面体形或球形的石凳供市民休息,如图(1)的多面体石凳是由图(2)的正方体石块截去八个相同的四面体得到,且该石凳的体积是
.
![](https://img.xkw.com/dksih/QBM/2021/1/29/2646770955632640/2649497721577472/STEM/0d60d14ee2424809b7f9c86f04f14de3.png?resizew=123)
(Ⅰ)求正方体石块的棱长;
(Ⅱ)若将图(2)的正方体石块打磨成一个球形的石凳,求此球形石凳的最大体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ad64ade7d08fea0614b4dccfd293a2.png)
![](https://img.xkw.com/dksih/QBM/2021/1/29/2646770955632640/2649497721577472/STEM/5c20dc925fa34f77ba1b40f8b514c57e.png?resizew=124)
![](https://img.xkw.com/dksih/QBM/2021/1/29/2646770955632640/2649497721577472/STEM/0d60d14ee2424809b7f9c86f04f14de3.png?resizew=123)
(Ⅰ)求正方体石块的棱长;
(Ⅱ)若将图(2)的正方体石块打磨成一个球形的石凳,求此球形石凳的最大体积.
您最近一年使用:0次
2021-02-02更新
|
859次组卷
|
3卷引用:河南省濮阳市2020-2021学年高一上学期期末数学试题
河南省濮阳市2020-2021学年高一上学期期末数学试题(已下线)专题8.2 简单几何体的表面积与体积(B卷提升篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版,浙江专用)广东省揭阳市揭西县河婆中学2020-2021学年高一下学期期中数学试题
2 . 如图,梯形
中,
,
,且
,
.现选择梯形的某一边为轴旋转一周,请说明所得到的几何体的构成并计算该几何体的体积.
注:若有多种选择分别解答,按第一种选择的解答给分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
注:若有多种选择分别解答,按第一种选择的解答给分.
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645297365565440/2647469412843520/STEM/ead38d2ec9a94c3c9e803a660b15d671.png?resizew=94)
您最近一年使用:0次
3 . 已知,在三棱锥
中,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad8c4151089079a3d729a74ca22e5e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/22ef5f04-b5bb-416f-b692-c2d6c1f5d354.png?resizew=175)
(1)求证:平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb9be0889b7ef7bee60b26eece6845b.png)
(2)若
是三棱锥
外接球上任一点,求三棱锥
体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6d682b584f0698a9a5c7a07d3102ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad8c4151089079a3d729a74ca22e5e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/22ef5f04-b5bb-416f-b692-c2d6c1f5d354.png?resizew=175)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb9be0889b7ef7bee60b26eece6845b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a9ec3b527947cad9caa4537e0cb7e7.png)
您最近一年使用:0次
解题方法
4 . 如图所示,在边长为4的正三角形
中,E,F依次是
的中点,
,
,
,
为垂足,若将
绕
旋转180°,求阴影部分形成的几何体的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179f83b6490ae006ae5a536bd8b63db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7699dd30e08702bfc6499eb9c89e54a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7593b634ce3153bcfc48d42898371fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/7901ae0c-b949-4d03-b7fb-6aca0aacbd19.png?resizew=165)
您最近一年使用:0次
名校
解题方法
5 . 如图,在正方体
中,E为
的中点.
和底面
的交线,并说明理由;
(2)平面
将正方体分成两部分,求这两部分的体积之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
您最近一年使用:0次
2020-11-02更新
|
1569次组卷
|
9卷引用:北京市西城区2019-2020学年高一下学期期末数学试题
北京市西城区2019-2020学年高一下学期期末数学试题安徽省芜湖市第一中学2020-2021学年高一下学期期中数学试题山西省运城市景胜中学2021-2022学年高二下学期4月月考数学(理)试题山西省太原市第五中学2021-2022学年高一下学期4月阶段性检测数学试题吉林省东北师范大学附属中学2022-2023学年高二上学期大练习一数学试题北京市景山学校远洋分校2021-2022学年高二上学期第一次月考数学试题广东省深圳市人大附中深圳学校2022-2023学年高一下学期期中数学试题(已下线)高二数学上学期【第一次月考卷】(测试范围:第1~2章)-2022-2023学年高二数学考试满分全攻略(人教A版2019选择性必修第一册)福建省福州屏东中学2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
6 . 一几何体按比例绘制的三视图如图所示(单位:
).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/c0bd6ffe-0378-47cf-8be4-a9b463270abc.png?resizew=196)
(1)试画出它的直观图(不写作图过程);
(2)求它的表面积和体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/c0bd6ffe-0378-47cf-8be4-a9b463270abc.png?resizew=196)
(1)试画出它的直观图(不写作图过程);
(2)求它的表面积和体积.
您最近一年使用:0次
2020-10-03更新
|
145次组卷
|
4卷引用:甘肃省武威第五中学2017-2018学年高一上学期期末考试数学试题
甘肃省武威第五中学2017-2018学年高一上学期期末考试数学试题安徽省六安市霍邱县第二中学2019-2020学年高一下学期段考数学试题(已下线)专题8.2 空间几何体的表面积和体积(精练)-2021年新高考数学一轮复习学与练安徽省滁州市六校2019-2020学年高二上学期期中文科数学试题
名校
解题方法
7 . 如图,在多面体ABCDEF中,ADEF为矩形,ABCD为等腰梯形,
,
,
,且
,平面
平面
,M,N分别为EF,CD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/ae8d846e-23bd-47c1-b721-896b847cb855.png?resizew=161)
(1)求证:
平面
;
(2)若
,求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb0674d65e9df5aeee26a98a1118f82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8915e8e775538d41debf1933102c6b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9367449a5847eade07e69f4feddcb027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/ae8d846e-23bd-47c1-b721-896b847cb855.png?resizew=161)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734735213b599a9915e1ed91a5d8ce4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
您最近一年使用:0次
2020-08-18更新
|
325次组卷
|
7卷引用:四川省泸县第四中学2022-2023学年高三上学期期末考试数学(文)试题
8 . 如图四棱锥
的底面
是平行四边形,
底面
,
,
,
,
,
分别是棱
,
的中点.
![](https://img.xkw.com/dksih/QBM/2020/8/2/2519306736001024/2520058636861440/STEM/da307639524e4f23a16159a5d304e60f.png?resizew=161)
(1)求异面直线
与
所成角的正切值;
(2)求三棱锥
外接球的体积.
![](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/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ad1b58fb91436d93b79df214b0ca23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08aa6fd52f3933cbded9ce8c880b4a10.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2020/8/2/2519306736001024/2520058636861440/STEM/da307639524e4f23a16159a5d304e60f.png?resizew=161)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7d5f4529fc41382cd42b8455a4dfb7.png)
您最近一年使用:0次
2020-08-03更新
|
520次组卷
|
2卷引用:江苏省无锡市普通高中2019-2020学年高二下学期期终数学试题
9 . 某广场设置了一些多面体形或球形的石凳供市民休息.如图(1)的多面体石凳是由图(2)的正方体石块截去八个相同的四面体得到,且该石凳的体积是
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/05ad8bbf-8319-4b9e-aab3-6adf4b908d04.png?resizew=239)
(1)求正方体石块的棱长;
(2)若将图(2)的正方体石块打磨成一个球形的石凳,求此球形石凳的最大表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b556c4ce3d75a242557a8b78aa0feb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/05ad8bbf-8319-4b9e-aab3-6adf4b908d04.png?resizew=239)
(1)求正方体石块的棱长;
(2)若将图(2)的正方体石块打磨成一个球形的石凳,求此球形石凳的最大表面积.
您最近一年使用:0次
2020-08-03更新
|
454次组卷
|
3卷引用:山东省潍坊市2019-2020学年高一第二学期期末考试数学试题
山东省潍坊市2019-2020学年高一第二学期期末考试数学试题北师大版(2019) 必修第二册 金榜题名 第六章 单元素养评价(已下线)第十三章 立体几何初步(压轴题专练)-单元速记·巧练(苏教版2019必修第二册)
名校
10 . 如图,四棱锥
中,四边形
为矩形,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/74475663-c355-455d-bbf0-c3f374a53c06.png?resizew=183)
(1)求证:
平面
;
(2)求四棱锥
外接球的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ca48cd27d4bf9d9ef084b558fc17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da426f62147ca7fb8d3314ca9dffbeb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9971233dc3e8ef828046fbb94101b9d0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/74475663-c355-455d-bbf0-c3f374a53c06.png?resizew=183)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6deecf9ccb7b7879455050633219e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
您最近一年使用:0次
2020-07-23更新
|
380次组卷
|
2卷引用:河北省保定市2019-2020学年高一下学期期末数学试题