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出典:Wikipedia
出典:『Wikipedia』 (2011/05/21 01:42 UTC 版)
In five dimensional geometry, a 5-simplex is a self-dual regular 5-polytope. It has 6 vertices, 15 edges, 20 triangle faces, 15 tetrahedral cells, and 6 pentachoron facets. It has a dihedral angle of cos−1(1/5), or approximately 78.46°.
5-simplex