只知道三棱锥四面体的6条棱长,怎么求体积?外接球与内切球半径的计算,有没有基于棱长的公式? 知乎 Template




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tomski只知道三棱锥四面体的6条棱长,怎么求体积?外接球与内切球半径的计算,有没有基于棱长的公式? 知乎 coloring