50) icositruncated dodecadodecahedron 5/3 3 5| [57,84] dual: tridyakisicosahedron (10/3.6.10), icosahedral group A5, χ=-16, D=4 V=120, E=180, F=44=12{10}+20{6}+12{10/3} α γ a b c ρ/R r/ρ l/ρ h/r {10} 18.0 79.1877 14.48 54.00 52.62 0.968246 0.607062 0.258199 1.309017 {6} 30.0 63.4349 14.48 30.00 26.57 0.968246 0.894427 0.258199 0.500000 {10/3} 54.0 37.3774 14.48 18.00 10.81 0.968246 0.982247 0.258199 0.190983