# Great retropental hecatonicosachoron

(Redirected from Griphi)

Great retropental hecatonicosachoron | |
---|---|

Rank | 4 |

Type | Uniform |

Notation | |

Bowers style acronym | Griphi |

Elements | |

Cells | 120 giddy |

Faces | 1200 hexagons, 720 decagrams |

Edges | 3600 |

Vertices | 720 |

Vertex figure | Pentagonal stephanoid |

Measures (edge length 1) | |

Circumradius | |

Number of external pieces | 93600 |

Level of complexity | 272 |

Related polytopes | |

Army | Rox |

Regiment | Ragishi |

Conjugate | Mriphi |

Convex core | Hecatonicosachoron |

Abstract & topological properties | |

Euler characteristic | –1080 |

Orientable | No |

Properties | |

Symmetry | H_{4}, order 14400 |

Convex | No |

Nature | Tame |

The **great retropental hecatonicosachoron**, or **griphi**, is a nonconvex noble uniform polychoron that consists of 120 great dodecicosahedra. Ten great dodecicosahedra join at each vertex.

## Gallery[edit | edit source]

## Vertex coordinates[edit | edit source]

The vertices are the same as those of the regiment colonel, the rectified great stellated hecatonicosachoron.

## External links[edit | edit source]

- Bowers, Jonathan. "Category 5: Pentagonal Rectates" (#109).

- Klitzing, Richard. "griphi".

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