58) great icosahedron 5/2|2 3 [69,41] dual: great stellated dodecahedron (3.3.3.3.3)/2, icosahedral group A5, χ=2, D=7 V=12, E=30, F=20=20{3} α γ a b c ρ/R r/ρ l/ρ h/r {3} 60.0 72.0000 58.28 79.19 69.09 0.525731 0.356822 1.618034 2.618034