Tetrahedral diprism (EntityTopic, 13)

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A tetrahedral diprism is a special case of the prism where the base is a tetrahedral prism. It is also the Cartesian product of a tetrahedron and a square.

Notable Pentashapes
Flat: pyroteronaeroterongeoteron
Curved: tritoruspentasphereglonecylspherindertesserinder

52. 11[11]1
Square pyramidal diprism
53. 1112
Tetrahedral diprism
54. [211]1
List of tapertopes