Acronym	gidthidy hi
Name	great ditrigonal hecatonicosadishecatonicosihecatonicosachoron
Circumradius	sqrt(3) = 1.732051
General of army	rahi
Colonel of regiment	rissidtixhi
Face vector	1200, 7200, 8400, 480
Confer	Grünbaumian relatives: efdit xithi
External links

As abstract polytope gidthidy hi is isomorphic to sidthidy hi, thereby replacing decagrams by decagons, resp. giddy by siddy.

Incidence matrix

1200 |   12 |    6    6    6   12   6 |   3   3   6   6
-----+------+-------------------------+----------------
   2 | 7200 |    1    1    1    2   1 |   1   1   2   2
-----+------+-------------------------+----------------
   3 |    3 | 2400    *    *    *   * |   1   1   0   0
   5 |    5 |    * 1440    *    *   * |   1   0   1   0
   5 |    5 |    *    * 1440    *   * |   0   1   1   0
   6 |    6 |    *    *    * 2400   * |   0   0   1   1
  10 |   10 |    *    *    *    * 720 |   0   0   0   2
-----+------+-------------------------+----------------
  30 |   60 |   20   12    0    0   0 | 120   *   *   *  id
  30 |   60 |   20    0   12    0   0 |   * 120   *   *  gid
  60 |  120 |    0   12   12   20   0 |   *   * 120   *  ided
  60 |  120 |    0    0    0   20  12 |   *   *   * 120  giddy