Johnson Solids (Page 5)

(box: x-ray)  (F: faces)  (slider: perspective)  (image: L=rotate R=zoom)  (M: metrics)

(J89) Hebesphenomegacorona
Vertices:  14  (4[4] + {4 + 2 * 3}[5])
Faces:21  ({4 * 3 + 2 * 3 equilateral triangles + {2 + 1} squares)
Edges:33
Symmetry:  2-fold Pyramidal  (C2v)
(values below based on edge length = 1)
Volume:sqrt(root[10th-order polynomial])    ≈2.9129104145402091660