Versi-Regular Polyhedra

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(Uniform #3) Octahemioctahedron
Vertices:  12  (12[4])
Faces:12  (8 equilateral triangles + 4 regular hexagons)
Edges:24
Symmetry:  Full Octahedral  (Oh)
Dihedral Angle:  acos(1/3)    ≈70.528779366 degrees
Dual Solid:  Octahemioctacron
(values below based on edge length = 1)
Circumscribed Radius:  1
Midscribed Radius:  sqrt(3)/2    ≈0.86602540378443864676
Hexagon Center Radius:  0
Triangle Center Radius:  sqrt(6)/3    ≈0.81649658092772603273


References:[1]Jean Paul Albert Badoureau, Mémoire sur les Figures Isocèles,
Journal de l'École polytechnique 49 (1881), 47-172.