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[几何] 四面体的6个侧棱切球心是否共球面

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lihpb posted 2024-5-27 12:16 |Read mode

假设四面体满足三组对棱之和相等，则该四面体各条棱的临棱区均存在侧棱切球，这6个侧棱切球心是否共球面。
是否存在公切球外切或内切于所有侧棱切球

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2025-6-8 06:44 GMT+8

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