Pentagonal icositetrahedron
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In geometry, a pentagonal icositetrahedron or pentagonal icosikaitetrahedron is a Catalan solid which is the dual of the snub cube. In crystallography it is also called a gyroid.
A geometric construction of the Tribonacci constant (AC), with compass and marked ruler, according to the method described by Xerardo Neira.
Conway polyhedron notation
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In geometry and topology, Conway polyhedron notation, invented by John Horton Conway and promoted by George W. Hart, is used to describe polyhedra based on a seed polyhedron modified by various prefix
Pentagonal icositetrahedron
…Pentagonal icositetrahedron Type Catalan Conway notation gC Coxeter diagram Face polygon irregular pentagon Faces 24 Edges 60 Vertices 38 = 6 + 8 + 24 Face configuration V3.3.3.3.4 Dihedral angle 136° 18' 33…
Rhombic dodecahedron jC = jO = oT
Triakis octahedron kO
Tetrakis hexahedron kC = mT
Deltoidal icositetrahedron oC = oO