在三棱锥
中,
,
,
,平面
平面
,则三棱锥
的外接球体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13d28cb7181257cf732af4b615fc47d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e70e6efce668b8f5b3e54763d71ec2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
23-24高二上·河南信阳·期末 查看更多[2]
更新时间:2023-12-28 23:07:45
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【推荐1】如图所示的粮仓可近似为一个圆锥和圆台的组合体,且圆锥的底面圆与圆台的较大底面圆重合.已知圆台的较小底面圆的半径为1,圆锥与圆台的高分别为
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【推荐2】已知四棱锥
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【推荐1】已知四面体
的四个面都为直角三角形,
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【推荐1】如图,平面
平面
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【推荐2】如图,在三棱锥
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