18) small cubicuboctahedron 3/2 4|4 [38,69] dual: small hexacronic icositetrahedron (8.3/2.8.4), octahedral group S4, χ=-4, D=2 V=24, E=48, F=20=6{8}+6{4}+8{3/2} α γ a b c ρ/R r/ρ l/ρ h/r {8} 22.5 81.5789 20.94 69.06 67.50 0.933949 0.382683 0.382683 2.414214 {4} 45.0 49.2105 20.94 30.36 22.50 0.933949 0.923880 0.382683 0.414214 {3/2} 120.0 -32.3684 20.94 24.37 12.76 0.933949 0.975287 0.382683 0.226541