This non-convex polyhedron illustrates three related equations: 60 = (12)(5) — twelve sets of five yellow hexagons, 60 = (30)(2) — thirty pairs of red isosceles triangles, and 60 = (20)(3) — twenty sets of three yellow hexagons.

For a second look at this polyhedron, I made the triangles invisible, and then put the rest of the model in “rainbow color mode.”

I made both of these images using *Stella 4d*, which you can try for free at this website.

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Stunning! and Stunning!

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