Friday, November 15, 2013

[dythkhgc] Octagon and octahedron

A regular octagon sitting on its side versus one balanced on its point seem counterintuitively rather different shapes.  The former has orthogonal edges and 45 degree angles.

Vaguely similarly, a regular octahedron on its vertex versus on its face seem rather different.  The former emphasizes the duality with the cube, while the latter a triangular antiprism.

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