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In geometry of 4 dimensions, a 4-8 duoprism, a duoprism and 4-polytope resulting from the Cartesian product of a square and a octagon.
It has 12 cells (4 octagonal prisms and 8 cubes), 44 faces (40 squares and 4 octagons), 64 edges, and 32 vertices.
4-8 duopyramid
The dual of a 4-8 duoprism is called a 4-8 duopyramid. It has 32 tetragonal disphenoid cells, 64 isosceles triangular faces, 44 edges, and 12 vertices.
References
4-8 duoprism Wikipedia(Text) CC BY-SA