Versi-Quasi-Regular Duals

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Rhombicosacron
Vertices:  50  (30[4] + 20[6])
Faces:60  (bowties)
Edges:120  (60 short + 60 long)
Symmetry:  Full Icosahedral  (Ih)
Dihedral Angle:  acos(−5/7)    ≈135.584691403 degrees
Dual Solid:  Rhombicosahedron
(values below based on unit-edge-length Rhombicosahedron)
Short Edge (60):  (5*sqrt(6)−sqrt(30))/10    ≈0.67702231388642293564
Long Edge (60):  (5*sqrt(6)+sqrt(30))/10    ≈1.7724674288967551626
[4]-Vertex Radius (30):  3*sqrt(5)/5    ≈1.3416407864998738178
[6]-Vertex Radius (20):  sqrt(3)    ≈1.73205080756887729353
Edge-scribed Radius:  sqrt(6)/2    ≈1.2247448713915890491
Inscribed Radius:  3*sqrt(7)/7    ≈1.1338934190276816816