P
Printablesmikan
Spidron - Platonic Solid - Tetrahedron, Cube, Octahedron, Dodecahedron, Icosahedron
Ref: https://en.wikipedia.org/wiki/Spidron A Way to Derive the Spidron Formulas https://www.gathering4gardner.org/g4g13gift/math/KissGergo-PaperOnSpidron-G4G13_20190724.pdf
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