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Thread: Platonic Solid

  1. #1
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    Platonic Solid

    Why there are five Platonic Solids?
    Can we have a "semi"-Platonic Solids?
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  2. #2
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    Re: Platonic Solid

    There are only five Platonic Solids and it's been proven.
    I refer you to the wiki which gives two proofs: one geometric and one topological proof.
    https://en.wikipedia.org/wiki/Platon...eometric_proof

    I have no idea what you mean by "semi"-Platonic solids. A Platonic solid is a regular, convex polyhedron. Which of these conditions (regular or convex) did you want to drop?

    Do you mean Archimedian solids? (semi-regular convex polyhedra)
    https://en.wikipedia.org/wiki/Archimedean_solid
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