Johnson Solids (Page 2)

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(J33) Pentagonal Gyrocupolarotunda

Vertices:   25  ({10 + 5 * 3}[4]) Faces: 27  ({5 * 3} equilateral triangles + 5 squares     + {5 + 1 * 2} regular pentagons) Edges: 50 Symmetry:   5-fold Pyramidal  (C5v) (values below based on edge length = 1) Volume: (55+25*sqrt(5))/12     ≈9.2418082864578952009