Johnson Solids (Page 4)

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(J64) Augmented Tridiminished Icosahedron

Vertices:   10  ({3 + 1}[3] + {3 * 2}[4]) Faces: 10  ({3 * 2 + 1} equilateral triangles + 3 regular pentagons) Edges: 18 Symmetry:   3-fold Pyramidal  (C3v) (values below based on edge length = 1) Volume: (15+2*sqrt(2)+7*sqrt(5))/24     ≈1.3950376236351965822