Acronym righia Name rectified great hecatonicosachoron alterprism Circumradius sqrt[8+3 sqrt(5)]/2 = 1.917564 Confer general polytopal classes: segmentotera   scaliform Externallinks

As abstract polytope righia is isomorphic to ragashia, thereby interchanging pentagons and pentagrams resp. replacing sissids by gads, peppies by stappies, and staps by paps, as well as replacing righis by ragashis and sissidadids by gaddadids.

Incidence matrix according to Dynkin symbol

```oo5xo5/2ox5oo&#x   → height = sqrt[sqrt(5)-2] = 0.485868
(righi || inv righi)

o.5o.5/2o.5o.    & | 1440 |   10    5 |    5   10   15 |   5   2    6   10 | 1   7
-------------------+------+-----------+----------------+-------------------+------
.. x.   .. ..    & |    2 | 7200    * |    1    2    1 |   2   1    1    2 | 1   3
oo5oo5/2oo5oo&#x   |    2 |    * 3600 |    0    0    4 |   0   0    2    4 | 0   4
-------------------+------+-----------+----------------+-------------------+------
o.5x.   .. ..    & |    5 |    5    0 | 1400    *    * |   2   0    1    0 | 1   2
.. x.5/2o. ..    & |    5 |    5    0 |    * 2880    * |   1   1    0    1 | 1   2
.. xo   .. ..&#x & |    3 |    1    2 |    *    * 7200 |   0   0    1    2 | 0   3
-------------------+------+-----------+----------------+-------------------+------
o.5x.5/2o. ..    & ♦   30 |   60    0 |   12   12    0 | 240   *    *    * | 1   1
.. x.5/2o.5o.    & ♦   12 |   30    0 |    0   12    0 |   * 240    *    * | 1   1
oo5xo   .. ..&#x & ♦    6 |    5    5 |    1    0    5 |   *   * 1440    * | 0   2
.. xo5/2ox ..&#x   ♦   10 |   10   10 |    0    2   10 |   *   *    * 1440 | 0   2
-------------------+------+-----------+----------------+-------------------+------
o.5x.5/2o.5o.    & ♦  720 | 3600    0 |  720 1440    0 | 120 120    0    0 | 2   *
oo5xo5/2ox ..&#x & ♦   42 |   90   60 |   12   24   90 |   1   1   12   12 | * 240
```