As abstract polytope sissidaraded is isomorphic to gaddaraded, thereby interchanging the roles of pentagrams and pentagons, resp. replacing sissid by gad, peppy by stappy, and stip by pip.

Incidence matrix according to Dynkin symbol

```ox5oo5/2xx&#x   → height = (sqrt(5)-1)/4 = 0.309017

o.5o.5/2o.    | 12  * |  5  5  0  0 |  5  5 10  0  0  0 | 1  1  5  5 0
.o5.o5/2.o    |  * 60 |  0  1  2  2 |  0  2  2  1  2  1 | 0  1  2  1 1
--------------+-------+-------------+-------------------+-------------
.. ..   x.    |  2  0 | 30  *  *  * |  2  0  2  0  0  0 | 1  0  1  2 0
oo5oo5/2oo&#x |  1  1 |  * 60  *  * |  0  2  2  0  0  0 | 0  1  2  1 0
.x ..   ..    |  0  2 |  *  * 60  * |  0  1  0  1  1  0 | 0  1  1  0 1
.. ..   .x    |  0  2 |  *  *  * 60 |  0  0  1  0  1  1 | 0  0  1  1 1
--------------+-------+-------------+-------------------+-------------
.. o.5/2x.    |  5  0 |  5  0  0  0 | 12  *  *  *  *  * | 1  0  0  1 0
ox ..   ..&#x |  1  2 |  0  2  1  0 |  * 60  *  *  *  * | 0  1  1  0 0
.. ..   xx&#x |  2  2 |  1  2  0  1 |  *  * 60  *  *  * | 0  0  1  1 0
.x5.o   ..    |  0  5 |  0  0  5  0 |  *  *  * 12  *  * | 0  1  0  0 1
.x ..   .x    |  0  4 |  0  0  2  2 |  *  *  *  * 30  * | 0  0  1  0 1
.. .o5/2.x    |  0  5 |  0  0  0  5 |  *  *  *  *  * 12 | 0  0  0  1 1
--------------+-------+-------------+-------------------+-------------
o.5o.5/2x.    ♦ 12  0 | 30  0  0  0 | 12  0  0  0  0  0 | 1  *  *  * *
ox5oo   ..&#x ♦  1  5 |  0  5  5  0 |  0  5  0  1  0  0 | * 12  *  * *
ox ..   xx&#x ♦  2  4 |  1  4  2  2 |  0  2  2  0  1  0 | *  * 30  * *
.. oo5/2xx&#x ♦  5  5 |  5  5  0  5 |  1  0  5  0  0  1 | *  *  * 12 *
.x5.o5/2.x    ♦  0 60 |  0  0 60 60 |  0  0  0 12 30 12 | *  *  *  * 1
```