Acronym affidhi Name antifrustary dishecatonicosachoron Circumradius sqrt(5) = 2.236068 Colonel of regiment affixthi Dihedral angles at {10} between idtid and quitdid:   144° at {4} between quitdid and quitdid:   90° at {10/3} between idtid and quitdid:   72° at {6} between idtid and idtid:   60° Confer 2affidhi Externallinks

As abstract polytope affidhi is automorph, thereby interchanging the roles of decagons and decagrams.

This polychoron is fissary. More precisely: vertices coincide by two with simplicial vertex figure each (type A). Alternatively those could be considered identified, then having a compound vertex figure instead (type B).

Incidence matrix

```(Type A)

7200 |    2    2 |    1    2    2    1 |   2   2
------+-----------+---------------------+--------
2 | 7200    * |    1    1    1    0 |   2   1
2 |    * 7200 |    0    1    1    1 |   1   2
------+-----------+---------------------+--------
6 |    6    0 | 1200    *    *    * |   2   0
10 |    5    5 |    * 1440    *    * |   1   1  {10}
10 |    5    5 |    *    * 1440    * |   1   1  {10/3}
4 |    0    4 |    *    *    * 1800 |   0   2
------+-----------+---------------------+--------
♦ 120 |  120   60 |   20   12   12    0 | 120   *
♦ 120 |   60  120 |    0   12   12   30 |   * 120
```

```(Type B)

3600 |    4    4 |    2    4    4    2 |   4   4
------+-----------+---------------------+--------
2 | 7200    * |    1    1    1    0 |   2   1
2 |    * 7200 |    0    1    1    1 |   1   2
------+-----------+---------------------+--------
6 |    6    0 | 1200    *    *    * |   2   0
10 |    5    5 |    * 1440    *    * |   1   1  {10}
10 |    5    5 |    *    * 1440    * |   1   1  {10/3}
4 |    0    4 |    *    *    * 1800 |   0   2
------+-----------+---------------------+--------
♦ 120 |  120   60 |   20   12   12    0 | 120   *
♦ 120 |   60  120 |    0   12   12   30 |   * 120
```