Great stellapentakis dodecahedron
In geometry, the great stellapentakis dodecahedron is a nonconvex isohedral polyhedron. It is the dual of the truncated great icosahedron. It has 60 intersecting triangular faces.Proportions
The triangles have one angle of and two of. The dihedral angle equals. Part of each triangle lies within the solid, hence is invisible in solid models.
