Why there arefivePlatonic Solids?

Can we have a "semi"-Platonic Solids?

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- Sep 13th 2018, 06:39 AMpolicerPlatonic Solid
Why there are

**five**Platonic Solids?

Can we have a "**semi"-Platonic Solids?** - Sep 13th 2018, 06:49 AMMacstersUndeadRe: 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