1 . 如图是某几何体的三视图,则该几何体的体积为
![](https://img.xkw.com/dksih/QBM/2017/11/23/1823567278956544/1826067421528064/STEM/3441124ba63d447eabcbca8ad5dbd729.png?resizew=146)
![](https://img.xkw.com/dksih/QBM/2017/11/23/1823567278956544/1826067421528064/STEM/3441124ba63d447eabcbca8ad5dbd729.png?resizew=146)
A.![]() | B.2 | C.![]() | D.![]() |
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2017-11-27更新
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925次组卷
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2卷引用:山西省陵川第一中学校2017-2018学年高二上学期期中考试数学试题
名校
2 . 四棱锥
的底面
是边长为
的正方形,且
,若一个半径为
的球与此四棱锥所有面都相切,则该四棱锥的高是__________ .
![](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/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8bc233a9902789a716fa0a31558dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
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2017-11-28更新
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682次组卷
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3卷引用:广东省执信中学2017-2018学年高二上学期期中考试数学(理)
3 . 如图,梯形
中,
∥
,将
沿
边翻折,使平面
平面
,
是
的中点,点
在线段
上且满足
.
![](https://img.xkw.com/dksih/QBM/2020/5/2/2453956687749120/2454864123625472/STEM/de9b6482d7e145db9993f9bd8369abaf.png?resizew=210)
(1)证明:
∥平面
;
(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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0712eeffdc917aac7c24855d56a51fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5352d28609d1b3d09a0a29d023d1bb72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5514db37e1a4fc64f974b2c79d25851.png)
![](https://img.xkw.com/dksih/QBM/2020/5/2/2453956687749120/2454864123625472/STEM/de9b6482d7e145db9993f9bd8369abaf.png?resizew=210)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec150229429412308f1155f8b098d3ee.png)
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名校
解题方法
4 . 表面积为
的球面上有四点
,
,
,
且
是等边三角形,球心
到平面
的距离为
,若平面
平面
,则棱锥
体积的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d559c89eb42798e31fdca19eafc3a582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448cbac9a1ef3de7538a6b30cdc39582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
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2017-05-07更新
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621次组卷
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8卷引用:甘肃省高台县第一中学2017届高三下学期第四次模拟数学(理)试题
5 . (2017·石家庄一模)祖暅是南北朝时期的伟大数学家,5世纪末提出体积计算原理,即祖暅原理:“幂势既同,则积不容异”.意思是:夹在两个平行平面之间的两个几何体,被平行于这两个平面的任何一个平面所截,如果截面面积都相等,那么这两个几何体的体积一定相等.现有以下四个几何体:图①是从圆柱中挖去一个圆锥所得的几何体,图②、图③、图④分别是圆锥、圆台和半球,则满足祖暅原理的两个几何体为( )
A.①② | B.①③ |
C.②④ | D.①④ |
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2017-04-14更新
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636次组卷
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8卷引用:安徽省合肥市第一六八中学2017-2018学年高二(凌志班)上学期期中数学(文)试题
名校
6 . 已知
,
,
是正常数,由直线
、直线
、双曲线
及其一条渐近线围成如图阴影部分所示的图形,该图形绕
轴旋转一周所得几何体的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62febf1db3a4e0e989fca82391989829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/dda8aa7f-1ea9-4c01-a260-c8d5c8b4ea51.png?resizew=189)
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18-19高一·全国·假期作业
7 . 一个正方体的八个顶点都在半径为1的球面上,则正方体的表面积为( )
A.8 | B.![]() | C.![]() | D.![]() |
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2019-12-24更新
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242次组卷
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3卷引用:陕西省西安市电子科技中学2022-2023学年高一下学期期中数学试题
陕西省西安市电子科技中学2022-2023学年高一下学期期中数学试题(已下线)步步高高一数学寒假作业:作业15空间几何体的表面积与体积安徽省滁州市定远县育才学校2020-2021学年高二下学期第三次月考文科数学试题
名校
8 . 一个圆柱形圆木的底面半径为
,长为
,将此圆木沿轴所在的平面剖成两部分.现要把其中一个部分加工成直四棱柱木梁,长度保持不变,底面为等腰梯形
(如图所示,其中
为圆心,
,
在半圆上),设
,木梁的体积为
(单位:
),表面积为
(单位:
).
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572670277410816/1572670283112448/STEM/554a26c0-fcf6-4405-82fb-93caac6462f6.png?resizew=190)
(1)求
关于
的函数表达式;
(2)求
的值,使体积
最大;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f328ba89c0a92a4447788b65571f7aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11db4b9921a9fe4d5c03b17bafc852fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eab9bcb68861b73f12a65eb9e94700d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c901bcdfa58f0c68ad0161b0bab269.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572670277410816/1572670283112448/STEM/554a26c0-fcf6-4405-82fb-93caac6462f6.png?resizew=190)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
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2016-12-04更新
|
458次组卷
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6卷引用:2015-2016学年安徽省六安一中高二下期中理科数学试卷
9 . 如图,边长为2的正方形
绕
边所在直线旋转一定的角度(小于
)到
的位置.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/e29a73de-2da0-42d6-bb71-60a9d4d981b2.png?resizew=197)
(1)若
,求三棱锥
的外接球的表面积;
(2)若
为线段
上异于
,
的点,
,设直线
与平面
所成角为
,当
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e7a123c9cc0e058db28841fb0edcf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/e29a73de-2da0-42d6-bb71-60a9d4d981b2.png?resizew=197)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a6cf782def3afe55af8e6da8c155b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d83c991c3d5cf60d11454f4ea5a129.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789f6b9da127198e68ba7bfc3f689490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1394fc01d91ffe8e6826cab0c933be3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ad8115387158c8dda205d26968ba11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ede1866d8da7582aea7838269e13a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ad8115387158c8dda205d26968ba11.png)
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解题方法
10 . 已知勒洛四面体是一个非常神奇的“四面体”,它能在两个平行平面间自由转动,并且始终与两平面都接触,因此它能像球一样来回滚动(如图甲),利用这一原理,科技人员发明了转子发动机.勒洛四面体是以正四面体的四个顶点为球心,以正四面体的棱长为半径的四个球的相交部分围成的几何体(如图乙),若勒洛四面体ABCD能够容纳的最大球的表面积为
,则正四面体ABCD的内切球的半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ebb9a166d0ce92751a2a1823ea24f13.png)
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