# Trapezoprismatic intersected 8-3 bigyrochoron

The **trapezoprismatic intersected 8-3 bigyrochoron**, also known as the **stegosaur 16**, is a convex isochoric polychoron with 16 identical cells.

Trapezoprismatic intersected 8-3 bigyrochoron | |
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Rank | 4 |

Type | Isotopic |

Elements | |

Cells | 16 11-vertex enneahedra |

Faces | 32 scalene triangles, 16 kites, 8 rhombi, 16 mirror-symmetric hexagons |

Edges | 32+32+32 |

Vertices | 8+16+16 |

Vertex figure | 16 phyllic disphenoids, 16 tetragonal disphenoids, 8 chiral rectangular trapezoprisms |

Measures (edge length 1) | |

Central density | 1 |

Related polytopes | |

Dual | Digonal-scalenohedral 8-3 double step prism |

Abstract & topological properties | |

Euler characteristic | 0 |

Orientable | Yes |

Properties | |

Symmetry | S_{2}(I_{2}(8)-3)×2R, order 32 |

Convex | Yes |

Nature | Tame |

Each cell of this polychoron has bilateral symmetry, with 2 mirror-symmetric hexagons, 1 rhombus, 2 kites, and 4 scalene triangles for faces.

## External links edit

- Bowers, Jonathan. "Four Dimensional Dice Up To Twenty Sides".