Acronym	graphi
Name	grand retropental hecatonicosachoron
Cross sections	©
Circumradius	sqrt[5-2 sqrt(5)] = 0.726543
General of army	rox
Colonel of regiment	rigfix
Face vector	720, 3600, 2520, 120
Confer	general polytopal classes: noble polytopes
External links

As abstract polytope graphi is isomorphic to sriphi, thereby replacing decagrams by decagons, resp. by replacing gird by sird.

Incidence matrix

720 |   10 |   10  10 |  10
----+------+----------+----
  2 | 3600 |    2   2 |   4
----+------+----------+----
  4 |    4 | 1800   * |   2
 10 |   10 |    * 720 |   2  {10/3}
----+------+----------+----
 60 |  120 |   30  12 | 120  gird