Great icosacronic hexecontahedron
In geometry, the great icosacronic hexecontahedron is the dual of the great icosicosidodecahedron. Its faces are darts. A part of each dart lies inside the solid, hence is invisible in solid models.Proportions
Faces have two angles of, one of and one of. Its dihedral angles equal. The ratio between the lengths of the long and short edges is.
