Biscribed Non-Chiral Solids

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Biscribed Disdyakis Triacontahedron
biscribed form
Vertices:  62  (30[4] + 20[6] + 12[10])
Faces:120  (acute triangles)
Edges:180  (60 short + 60 medium + 60 long)
Symmetry:  Full Icosahedral  (Ih)
Short Edge Angle:  acos(root[8th-order polynomial])    ≈148.783008052 degrees
Medium Edge Angle:  acos(root[8th-order polynomial])    ≈159.873954027 degrees
Long Edge Angle:  acos(root[8th-order polynomial])    ≈178.075866533 degrees
Dual Solid:  Biscribed Truncated Icosidodecahedron
(values below based on circumscribed radius = 1)
Short Edge (60):  sqrt(3*(6−sqrt(3)−sqrt(15)))/3    ≈0.36284332992983157096
Medium Edge (60):  sqrt(5*(10−sqrt(10*(5+sqrt(5)))))/5    ≈0.546533057825343384449
Long Edge (60):  sqrt(30*(15−sqrt(15*(5+2*sqrt(5)))))/15    ≈0.64085182017098754129
Circumscribed Radius:  1
Inscribed Radius:  1/sqrt(13−4*sqrt(3)+4*sqrt(5)    
    −2*sqrt(15)−2*sqrt(5+2*sqrt(5)))    
≈0.94714004379880998659
Volume:4*sqrt(15*(5−2*sqrt(5)))/3    ≈3.7518494817015979972