Acronym	ridhi
Name	retroinverted dishecatonicosachoron
Cross sections	©
Circumradius	sqrt[(5+sqrt(5))/2] = 1.902113
General of army	rox
Colonel of regiment	righi
Face vector	720, 3600, 2880, 240
External links

The retroinverted dishecatonicosachoron is an edge-faceting of the rectified great hecatonicosachoron (righi).

As abstract polytope ridhi is isomorphic to frogshi, thereby interchanging the roles of pentagons and pentagrams, resp. by replacing tigid by quit sissid.

Incidence matrix

 720 |   10 |   10   5  10 |   5  10
-----+------+--------------+--------
   2 | 3600 |    2   1   2 |   2   3
-----+------+--------------+--------
   5 |    5 | 1440   *   * |   1   1  {5/2}
   5 |    5 |    * 720   * |   2   0  {5}
  10 |   10 |    *   * 720 |   0   2  {10}
-----+------+--------------+--------
♦ 30 |   60 |   12  12   0 | 120   *
♦ 60 |   90 |   12   0  12 |   * 120