Johnson Solids (Page 1)
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(J2)
Pentagonal Pyramid
Vertices:
6 (5[3] + 1[5])
Faces:
6 (5 equilateral triangles + 1 regular pentagon)
Edges:
10
Symmetry:
5-fold Pyramidal (C5v)
(values below based on edge length = 1)
Volume:
(5+sqrt(5))/24
≈0.30150283239582457068