Medial icosacronic hexecontahedron

In geometry, the medial icosacronic hexecontahedron (or midly sagittal ditriacontahedron) is a nonconvex isohedral polyhedron.

It is the dual of the uniform icosidodecadodecahedron.

Its faces are darts.

Part of each dart lies inside the solid, hence is invisible in solid models.

Faces have two angles of

arccos ⁡ (

arccos ⁡ ( −

− arccos ⁡ ( −

Its dihedral angles equal

The ratio between the lengths of the long and short edges is

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