Acronym	ridditdy
Name	retroditrigonary dishecatonicosachoron
Cross sections	©
Circumradius	sqrt(3) = 1.732051
General of army	rahi
Colonel of regiment	rissidtixhi
Face vector	1200, 7200, 4680, 240
Confer	2ridditdy
External links

As abstract polytope ridditdy is automorphic, thereby replacing pentagons by pentagrams while ditdid and raded are automorphic too.

Incidence matrix

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