# Heptagonal-dodecagonal duotegum

The **heptagonal-dodecagonal duotegum**, also known as the **7-12 duotegum**, is a duotegum that consists of 84 digonal disphenoids and 19 vertices.

Heptagonal-dodecagonal duotegum | |
---|---|

Rank | 4 |

Type | Uniform dual |

Notation | |

Coxeter diagram | m7o2m12o |

Elements | |

Cells | 84 digonal disphenoids |

Faces | 84+84 isosceles triangles |

Edges | 7+12+84 |

Vertices | 7+12 |

Vertex figure | 12 heptagonal tegums, 7 dodecagonal tegums |

Measures (edge length 1) | |

Central density | 1 |

Related polytopes | |

Dual | Heptagonal-dodecagonal duoprism |

Conjugates | Heptagonal-dodecagrammic duotegum, Heptagrammic-dodecagonal duotegum, Heptagrammic-dodecagrammic duotegum, Great heptagrammic-dodecagonal duotegum, Great heptagrammic-dodecagrammic duotegum |

Abstract & topological properties | |

Euler characteristic | 0 |

Orientable | Yes |

Properties | |

Symmetry | I_{2}(7)×I_{2}(12), order 336 |

Convex | Yes |

Nature | Tame |

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