Self-Intersecting Truncated Regular Duals

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Small Stellapentakis Dodecahedron
Vertices:  24  (12[5] + 12[10])
Faces:60  (isosceles triangles)
Edges:90  (60 short + 30 long)
Symmetry:  Full Icosahedral  (Ih)
Dihedral Angle:  acos(−(24+5*sqrt(5))/41)    ≈149.099125827 degrees
Dual Solid:  Truncated Great Dodecahedron
(values below based on unit-edge-length Truncated Great Dodecahedron)
Short Edge (60):  5*(sqrt(5)−1)/2    ≈3.0901699437494742410
Long Edge (30):  (5+3*sqrt(5))/2    ≈5.8541019662496845446
[5]-Vertex Radius (12):  5*sqrt(5−2*sqrt(5))/2    ≈1.8163563200134022147
[10]-Vertex Radius (12):  sqrt(5*(5+2*sqrt(5)))/2    ≈3.44095480117793384552
Edge-scribed Radius:  (5+sqrt(5))/4    ≈1.8090169943749474241
Inscribed Radius:  5*sqrt(41*(11+4*sqrt(5)))/82    ≈1.7436414058326379706