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