解题方法
1 . 一个三棱柱的正视图、俯视图如图所示,则其体积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/a85c9db3-adc5-4186-890a-52cc2215983c.png?resizew=133)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/a85c9db3-adc5-4186-890a-52cc2215983c.png?resizew=133)
A.![]() | B.![]() | C.2 | D.1 |
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解题方法
2 . 已知正方体
的表面积为24,则四棱锥
的体积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/90f7daf2-3de0-46ee-b6c2-cc60ba86e74f.png?resizew=153)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54ed3e5c70f86a4f45fd67641b304d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/90f7daf2-3de0-46ee-b6c2-cc60ba86e74f.png?resizew=153)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
3 . 已知正三棱锥
的侧棱
,
,
两两垂直,且
,以
为球心的球与底面
相切,则该球的半径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.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/50094bfee564d9c1b03088ac2ece28c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-30更新
|
853次组卷
|
3卷引用:陕西省西安市西安中学2024届高三上学期期末数学(理)试题
4 . 已知某圆台的上、下底面积分别为
,母线长为5,则该圆台的体积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af4685922bb41414fa5167f9435ea3f.png)
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2023-11-29更新
|
355次组卷
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3卷引用:黑龙江省绥化市肇东四中2024届高三上学期期末数学试题
5 . 如图所示,
是正三角形,
平面
,
,
,
,且F为
的中点.
(1)求证:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8256dc97e0101783f83159d35eeadf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317888e19b25197c633acd44eb855f85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/10067389-64d4-43e6-afc2-3b9e7f8388e0.png?resizew=126)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2b5cfae407016cad45bbdefea05833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca839944d0ac5155e2d78c094899b789.png)
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解题方法
6 . 半径为
的球
内有一圆锥,该圆锥的高为
,底面圆周在球
的球面上,则球
的体积与该圆锥的体积之比为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57496f10d394934fccf68e28eca923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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解题方法
7 . 一个正方体的八个顶点都在同一球面上,已知这个球的表面积是
,则这个正方体的体积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dba908a505cff93e0b297d00b82a40.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-26更新
|
277次组卷
|
2卷引用:上海市复兴高级中学2023-2024学年高二上学期数学期末考试数学试卷
名校
解题方法
8 . 如图所示,在四棱锥
中,
平面
,
,
,
是
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/2023/11/24/3375040314818560/3375070155898880/STEM/84943f3c3953461fb55cb7d164f49154.png?resizew=257)
(1)证明:
平面
;
(2)若二面角
的平面角的大小为
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a93f5289c1483bc39b0125fdc8dd67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea02307e6da633304ede631c3c374261.png)
![](https://img.xkw.com/dksih/QBM/2023/11/24/3375040314818560/3375070155898880/STEM/84943f3c3953461fb55cb7d164f49154.png?resizew=257)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6d5aaf764583992b9ec1e7dea8f5f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
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2023-11-24更新
|
614次组卷
|
2卷引用:四川省绵阳市南山中学实验学校2023-2024学年高二上学期期末模拟数学试题(六)
9 . 如图,在直三棱柱
中,底面
是以
为底边的等腰直角三角形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/f6df3a27-0e58-4578-b677-64c2622d0466.png?resizew=148)
(1)求证:平面
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c14a66ed4bd66df65bc42c4ac1ed15c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/f6df3a27-0e58-4578-b677-64c2622d0466.png?resizew=148)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dee56b9f36ba8f76fe67b76383636b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
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2023-11-23更新
|
646次组卷
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4卷引用:模块三 专题4 大题分类练(立体几何)基础夯实练
(已下线)模块三 专题4 大题分类练(立体几何)基础夯实练四川省泸州市泸县第一中学2024届高三上学期期末数学(文)试题四川省成都市蓉城名校联盟2024届高三上学期第一次联考数学(文)试题(已下线)第四章 立体几何解题通法 专题四 投影变换法 微点3 投影变换法综合训练【培优版】
2023·全国·模拟预测
解题方法
10 . 某圆锥的母线长为4,轴截面是顶角为120°的等腰三角形,过该圆锥的两条母线作圆锥的截面,当截面面积最大时,圆锥底面圆的圆心到此截面的距离为( )
A.4 | B.2 | C.![]() | D.![]() |
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