名校
解题方法
1 . 已知球
表面上的四点
,
,
,
满足
,
,若四面体
体积的最大值为
,则球
的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bc7774144c164f7ebaeca54fa657e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-06更新
|
456次组卷
|
4卷引用:江西省五市八校2019-2020学年高三第二次联考文科数学试题
名校
解题方法
2 . 已知三棱锥P﹣ABC的四个顶点在球O的球面上,球O的半径为4,△ABC是边长为6的等边三角形,记△ABC的外心为O1.若三棱锥P﹣ABC的体积为
则PO1=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848356c032b8fada386fa4227e45c231.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-03-28更新
|
285次组卷
|
4卷引用:重庆市直属校(重庆市第八中学)2020届高三下学期3月月考数学(理)试题
名校
3 . 如图,将边长为2的正方体
沿对角线
折起,得到三棱锥
,则下列命题中,错误的为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4c18aba9681a8475968248764d4c3a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/2fadcddc-b2e9-4b64-bc2e-602596138770.png?resizew=219)
A.直线![]() ![]() |
B.![]() |
C.三棱锥![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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2018-12-11更新
|
975次组卷
|
6卷引用:河南省新乡市2017-2018学年高一上学期期末考试数学试题
名校
4 . 《九章算术》中,将底面是直角三角形的直三棱柱称之为“堑堵”.已知“堑堵”
的所有顶点都在球
的球面上,且
,若球
的表面积为
,则这个三棱柱的体积是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883fc5e3faf39829d60804b59deb1730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c055a02fba0827ffcaa92f73ce7720.png)
A.![]() | B.![]() | C.![]() | D.1 |
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2018-04-27更新
|
857次组卷
|
3卷引用:重庆市黔江新华中学校2019-2020学年高二上学期10月月考数学试题
2014·云南红河·一模
名校
5 . 已知正三棱锥
的侧棱
、
、
两两垂直,且
,则正三棱锥
的外接球的表面积是 ___________ .
![](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/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://img.xkw.com/dksih/QBM/2014/5/15/1571723213848576/1571723219632128/STEM/894d35240d2745e7a422873e4314f0ef.png?resizew=63)
您最近一年使用:0次