# Tetrahedral diprism (EntityTopic, 13)

### From Hi.gher. Space

(Redirected from Rotope 85)

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:
| pyroteron • aeroteron • geoteron |

Curved:
| tritorus • pentasphere • glone • cylspherinder • tesserinder |

52. 11[11]^{1}Square pyramidal diprism | 53. 111
^{2}Tetrahedral diprism | 54. [21^{1}]^{1}Cyltrianglindrone |

List of tapertopes |