在半径为1的球内放置一个高为1的长方体,则长方体体积的最大值为( )
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更新时间:2023-06-06 14:14:06
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【知识点】 多面体与球体内切外接问题
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单选题
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适中
(0.65)
解题方法
【推荐1】在四面体
中,
,E为
的中点,
,且
,则四面体
的外接球的半径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ebbb8503348d393313970c96f0f6e9a.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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单选题
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适中
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名校
解题方法
【推荐2】如图1,在
中,
,
,
,
,沿
将
折起,使得二面角
为60°,得到三棱锥
,如图2,若
,则三棱锥
的外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e78042a384255038de485fd7bc0839.png)
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