名校
1 . 已知长方体
的体积为24,
分别为棱
上的点(异于端点),且
,则四棱锥
的体积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969630cb6dc51ef586be9517ed70eb8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bd9e8b54864ca44115d24a5aeeb83c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71becd5bb7b9fbcf1195c4ffa4e6efbd.png)
![](https://img.xkw.com/dksih/QBM/2018/3/6/1896381401063424/1896904495030272/STEM/453aa2def3ae494b883db985663aa0e0.png?resizew=129)
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2 . 四棱锥
的底面
为正方形,
底面
,
,若该四棱锥的所有顶点都在体积为
的同一球面上,则
( )
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c17becf5c20514b6bc17f0a0f9a20251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5745e2dc1d5308872c68ae932cd13ffa.png)
A.3 | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
417次组卷
|
5卷引用:安徽省六安市第一中学2017-2018学年高二上学期开学考试数学试题
3 . 如图,
为圆柱的轴截面,底面圆圆心为
是底面圆周上的两个点,
为等边三角形,
.
(1)求三棱锥
的体积;
(2)求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b7b7793d29d66dfdd89e7a6564a35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c64e9e73bb9183e6ab921ea921c038a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53388140df95e294d442739af5e17fa7.png)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dbac92660844ecbc44386e80f4b577.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e58914f1ccdc19e762c4b86d3dd906f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
![](https://img.xkw.com/dksih/QBM/2017/12/5/1831765933367296/1833526170894336/STEM/588fa727168840fc9ed9cff78f07f9d5.png?resizew=261)
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2017-12-07更新
|
195次组卷
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3卷引用:安徽省定远县育才学校2017-2018学年高二下学期开学调研考试数学(文)试题
4 . 若正四棱柱
的底边长为2,
与地面底面
成45°角,则三棱锥
的表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44dc7e4469c1fc443464c105b20f1224.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2017-12-07更新
|
176次组卷
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3卷引用:安徽省定远县育才学校2017-2018学年高二下学期开学调研考试数学(文)试题
安徽省定远县育才学校2017-2018学年高二下学期开学调研考试数学(文)试题山西省晋中市榆社中学2017-2018学年高二期中考试数学(文)试卷(已下线)考点29 空间几何体的表面积与体积-备战2021年高考数学(理)一轮复习考点一遍过
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5 . 直四棱柱
内接于半径为
的半球
,四边形
为正方形,则该四棱柱的体积最大时,
的长是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.1 | B.![]() | C.![]() | D.2 |
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2017-10-23更新
|
287次组卷
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2卷引用:安徽省定远县育才学校2017-2018学年高二下学期开学调研考试数学(文)试题
名校
6 . 右图是一个几何体的三视图,若该几何体的底面为直角梯形,则该几何体体积为
![](https://img.xkw.com/dksih/QBM/2016/5/6/1572622452867072/1572622457987072/STEM/62d45f325f1f4ed78b9f19c003218ec1.png)
![](https://img.xkw.com/dksih/QBM/2016/5/6/1572622452867072/1572622457987072/STEM/62d45f325f1f4ed78b9f19c003218ec1.png)
A.8 | B.10 | C.12 | D.24 |
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2016-12-04更新
|
358次组卷
|
2卷引用:安徽省六安市第一中学2017-2018学年高一下学期开学考试数学(理)试题
7 . 如图所示的多面体,它的正视图是斜边长为
的直角三角形,左视图为边长是
的正方形,俯视图为有一个内角为
的直角梯形,则该多面体的体积为__________ .
![](https://img.xkw.com/dksih/QBM/2018/3/1/1892857418178560/1907521976500224/STEM/334e2a20b8734c4a97521e1297846b32.png?resizew=192)
![](https://img.xkw.com/dksih/QBM/2018/3/1/1892857418178560/1907521976500224/STEM/5301b34aa2104778af1c503b9f2a91ef.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2018/3/1/1892857418178560/1907521976500224/STEM/7867a364343c42bab9a37d48fae31d3e.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2018/3/1/1892857418178560/1907521976500224/STEM/2520b3666e4a4583b3beae045bdf2aa7.png?resizew=20)
![](https://img.xkw.com/dksih/QBM/2018/3/1/1892857418178560/1907521976500224/STEM/334e2a20b8734c4a97521e1297846b32.png?resizew=192)
![](https://img.xkw.com/dksih/QBM/2018/3/1/1892857418178560/1907521976500224/STEM/587feedc07314ce492912852756946ba.png?resizew=385)
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8 . 某几何体的三视图如图所示,则该几何体的表面积为
![](https://img.xkw.com/dksih/QBM/2016/11/9/1573136519716864/1573136525451264/STEM/afaead453933434f9957ed09573f92ab.png)
![](https://img.xkw.com/dksih/QBM/2016/11/9/1573136519716864/1573136525451264/STEM/afaead453933434f9957ed09573f92ab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知一个几何体的三视图如图所示,则该几何体表面积为
![](https://img.xkw.com/dksih/QBM/2016/9/28/1573048556093440/1573048562089984/STEM/06a28ec6dc8e4a64ab276084b741bf7d.png)
![](https://img.xkw.com/dksih/QBM/2016/9/28/1573048556093440/1573048562089984/STEM/06a28ec6dc8e4a64ab276084b741bf7d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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