最終更新日：2025/11/21
When I first saw the hebesphenomegacorona in the polyhedron gallery, I was struck by how its 18 triangular and 3 square faces fit together so precisely.
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When I first saw the hebesphenomegacorona in the polyhedron gallery, I was struck by how its 18 triangular and 3 square faces fit together so precisely.
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