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[几何] 由面积决定四面体是否存在

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hejoseph Posted at 2023-10-16 11:18:18 |Read mode
Last edited by kuing at 2023-11-7 17:26:00若已知四个面积,满足任意三个面积的和大于第四个面积,那么是否存在一个四面体的四个面的面积是已知的面积?

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realnumber Posted at 2023-10-16 13:38:29
致各位论坛网友:

由于 hbghlyj 操作数据库失误导致由 2023-9-26 至 2023-11-5 间期的所有帖子的内文都被清空,在此给大家真诚道歉。

现在我们正在浏览这期间的帖子,努力回忆内容,尽可能地多恢复一些,如果您还记得本帖原本的内容,也希望您能编辑回来,麻烦各位了。

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 Author| hejoseph Posted at 2023-10-17 15:50:06
Last edited by kuing at 2023-11-7 17:27:00应该是没问题了
在这里也有一些讨论:bbs.emath.ac.cn/thread-19151-1-1.html

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