11) cube 3|2 4 [18,3] dual: octahedron (4.4.4), octahedral group S4, χ=2, D=1 V=8, E=12, F=6=6{4} α γ a b c ρ/R r/ρ l/ρ h/r {4} 45.0 60.0000 35.26 54.74 45.00 0.816497 0.707107 0.707107 1.000000