# Tridecagonal duoprism

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Tridecagonal duoprism | |
---|---|

File:13-13-dip.png | |

Rank | 4 |

Type | Uniform |

Space | Spherical |

Notation | |

Bowers style acronym | Taddip |

Coxeter diagram | x13o x13o |

Elements | |

Cells | 26 tridecagonal prisms |

Faces | 169 squares, 26 tridecagons |

Edges | 338 |

Vertices | 169 |

Vertex figure | Tetragonal disphenoid, edge lengths 2cos(π/13) (bases) and √2 (sides) |

Measures (edge length 1) | |

Circumradius | |

Inradius | |

Hypervolume | \frac{169}{16\tan^@\frac{\pi}{13 |

Related polytopes | |

Army | Taddip |

Regiment | Taddip |

Properties | |

Symmetry | I_{2}(13)≀S_{2}, order 1352 |

≈ 173.86449</math>

|dich=13p–13–13p:
|dich2=13p–4–13p: 90°
|dual=Tridecagonal duotegum
|conjugate=Small tridecagrammic duoprism, tridecagrammic duoprism, medial tridecagrammic duoprism, great tridecagrammic duoprism, grand tridecagrammic duoprism
|conv=Yes
|orientable=Yes
|nat=Tame}}
The **tridecagonal duoprism** or **taddip**, also known as the **tridecagonal-tridecagonal duoprism**, the **13 duoprism** or the **13-13 duoprism**, is a noble uniform duoprism that consists of 26 tridecagonal prisms and 169 vertices. It is also the 26-12 gyrochoron. It is the first in an infinite family of isogonal tridecagonal dihedral swirlchora and also the first in an infinite family of isochoric tridecagonal hosohedral swirlchora.

## External links[edit | edit source]

- Bowers, Jonathan. "Category A: Duoprisms".