已知三棱锥
中,
,
,当该三棱锥体积最大时,其外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c58ed79dd974f1741fa956775efd574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19f0fcacac715a1200770516d1e4a67.png)
更新时间:2023-10-08 19:14:55
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