Johnson Solids (Page 2)
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(J39)
Elongated Pentagonal Gyrobicupola
Vertices:
30 ({20 + 10}[4])
Faces:
32 (10 equilateral triangles + {10 * 2} squares
+ 2 regular pentagons)
Edges:
60
Symmetry:
5-fold Antiprismatic (D5v)
(values below based on edge length = 1)
Volume:
(10+8*sqrt(5)
+15*sqrt(5+2*sqrt(5)))/6
≈12.342299479604519768