名校
解题方法
1 . 如图,在直四棱柱
中,底面
是正方形,
,
,线段AC上有两个动点E,F(顺序如图),且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/17558466-c015-43e7-a719-d9111bebad74.png?resizew=132)
(1)求三棱锥
的体积;
(2)求直线
与
所成角的余弦值的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6469878a955cc09fac22ba5aea3fb962.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/17558466-c015-43e7-a719-d9111bebad74.png?resizew=132)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83661ebf0bbfb0b0db0ca079f16f9763.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1158eaa2e338f564eb18de5bef1d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
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2023-12-18更新
|
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2卷引用:广东省惠州市惠阳区泰雅实验学校2023-2024学年高二上学期10月月考数学试题
名校
解题方法
2 . 设
是同一个球面上四点,球的表面积为
,
是边长为6的等边三角形,则三棱锥
体积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc2a78406f5e1e9936c60851f6e9500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:云南省下关一中教育集团2023-2024学年高二上学期12月段考(二)数学试卷
3 . 已知正四棱锥
的底面边长是
,体积是
,那么这个四棱锥的侧棱长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fbbc8f521edab89a7e373287bcfbd9.png)
A.![]() | B.2 | C.![]() | D.![]() |
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2卷引用:河北省张家口市张垣联盟2024届高三上学期12月阶段测试数学试题
4 . 已知正四棱锥
侧面和底面的棱长都为4,P为棱BC上的一个动点,则点
到平面
的距离是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
5 . 如图,在四棱锥
中,
平面
,底面
为正方形,
为
的中点.
平面
;
(2)若
,
,求三棱锥
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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491c3a4f72b84ebadd28b90711435adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d43bda688873f30894005eb81fbfea2.png)
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|
932次组卷
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3卷引用:2023年宁夏回族自治区吴忠市学业水平考试数学试题
6 . (多选题)“堑堵”“阳马”和“鳖臑”是我国古代对一些特殊几何体的称谓.《九章算术·商功》:“斜解立方,得两堑堵,斜解堑堵,其一为阳马,其一为鳖臑”.一个长方体沿对角面斜解(图1),得到一模一样的两个堑堵(图2),再沿一个堑堵的一个顶点和相对的棱斜解(图2),得一个四棱锥称为阳马(图3),一个三棱锥称为鳖臑(图4).若长方体的体积为V,由该长方体斜解所得到的堑堵、阳马和鳖臑的体积分别为
,
,
,则下列选项正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/25825aa4-14b0-4050-8fc0-d15fb7358f38.png?resizew=541)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3411c87c90bd10bbadd9201630bf45f4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/25825aa4-14b0-4050-8fc0-d15fb7358f38.png?resizew=541)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023·全国·模拟预测
解题方法
7 . 已知正三棱锥
的外接球的表面积为
,若
平面PBC,则三棱锥
的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c055a02fba0827ffcaa92f73ce7720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
8 . 如图,已知三棱锥
中,
平面
,
,
,
,
.
(1)求点
到平面
的距离;
(2)求三棱锥
的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c3f13203c1915b104924f650fe4227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb8e20db1fbb40f17dea52f951b907.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/2836b81f-dbd3-4d7b-83fd-b4f002469af5.png?resizew=152)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
您最近一年使用:0次
2023-11-28更新
|
826次组卷
|
4卷引用:上海市民办新虹桥中学2023-2024学年高二上学期期中考试数学试卷
上海市民办新虹桥中学2023-2024学年高二上学期期中考试数学试卷上海市浦东新区进才中学2023-2024学年高二上学期12月月考数学试题8.6.2直线与平面垂直练习(已下线)第八章 立体几何初步(二)(知识归纳+题型突破)(2)-单元速记·巧练(人教A版2019必修第二册)
名校
解题方法
9 . 如图,在四棱锥
中,已知:
平面
,
,
,
,已知
是四边形
内部一点(包括边界),且二面角
的平面角大小为
,若点
是
中点,则四棱锥
体积的最大值是( )
![](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/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a755edadca4e4fc27fd49559b8d691ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1074c943acd591413af464a28c285f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8787d38a2a6f1dbb0581ccff5ff24f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0779bf252723c0419ab5358cf1d5c0fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/b1148f7d-93b1-4bcb-a768-938026ee9a34.png?resizew=140)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-27更新
|
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4卷引用:湖北省武汉市新洲区部分学校2023-2024学年高二上学期期中质量检测数学试题
湖北省武汉市新洲区部分学校2023-2024学年高二上学期期中质量检测数学试题江西省吉安市峡江中学2023-2024学年高二上学期期末数学试卷(九省联考题型)(已下线)第3套-复盘卷(已下线)第二章 立体几何中的计算 专题七 空间范围与最值问题 微点3 面积、体积的范围与最值问题(一)【基础版】