Square-pentagonal duoantitegum

The square-pentagonal duoantitegum, also known as the 4-5 duoantitegum,is a convex isochoric polychoron and member of the duoantitegum family with 40 elongated digonal disphenoids as cells.

Each cell of this polychoron has rectangular pyramidal symmetry, with 4 kites and 4 isosceles triangles for faces.