Great ditrigonal dodecacronic hexecontahedron
Introduction 3D model of a great ditrigonal dodecacronic hexecontahedronIn geometry, the '''great ditrigonal dodecacronic hexecontahedron''' (or '''great lanceal trisicosahedron''') is a nonconvex isohedral polyhedron. It is the dual of the uniform great ditrigonal dodecicosidodecahedron. Its faces are kites. Part of each kite lies inside the solid, hence is invisible in solid models.
Proportions Kite faces have two angles of , one of  and one of . Its dihedral angles equal . The ratio between the lengths of the long edges and the short ones equals .
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