Acronym ditdidap
Name ditrigonal-dodecadodecahedron antiprism
Cross sections
 ©
Circumradius sqrt[(27+sqrt(5))/32] = 0.955838
Colonel of regiment sidtidap
External
links
hedrondude   WikiChoron  

As abstract polytope ditdidap is automorph, thereby interchanging the roles of pentagrams and pentagons, resp. of stap and pap

It occurs as the blend of sidtidap and gidtidap, blending out all their lacing tets.


Incidence matrix

narrower ditdid || ditdid   → height = (1+sqrt(5))/4 = 0.809017

20  * |  6  3  0 |  3  3  6  3  0  0 | 1  3  3 0
 * 20 |  0  3  6 |  0  0  3  6  3  3 | 0  3  3 1
------+----------+-------------------+----------
 2  0 | 60  *  * |  1  1  1  0  0  0 | 1  1  1 0
 1  1 |  * 60  * |  0  0  2  2  0  0 | 0  2  2 0
 0  2 |  *  * 60 |  0  0  0  1  1  1 | 0  1  1 1
------+----------+-------------------+-----------
 5  0 |  5  0  0 | 12  *  *  *  *  * | 1  1  0 0  {5}
 5  0 |  5  0  0 |  * 12  *  *  *  * | 1  0  1 0  {5/2}
 2  1 |  1  2  0 |  *  * 60  *  *  * | 0  1  1 0
 1  2 |  0  2  1 |  *  *  * 60  *  * | 0  1  1 0
 0  5 |  0  0  5 |  *  *  *  * 12  * | 0  1  0 1  {5}
 0  5 |  0  0  5 |  *  *  *  *  * 12 | 0  0  1 1  {5/2}
------+----------+-------------------+----------
20  0 | 60  0  0 | 12 12  0  0  0  0 | 1  *  * *  ditdid
 5  5 |  5 10  5 |  1  0  5  5  1  0 | * 12  * *  pap
 5  5 |  5 10  5 |  0  1  5  5  0  1 | *  * 12 *  stap
 0 20 |  0  0 60 |  0  0  0  0 12 12 | *  *  * 1  ditdid

or
40 |   6  3 |  3  3   9 | 1  3  3
---+--------+-----------+--------
 2 | 120  * |  1  1   1 | 1  1  1
 2 |   * 60 |  0  0   4 | 0  2  2
---+--------+-----------+--------
 5 |   5  0 | 24  *   * | 1  1  0  {5}
 5 |   5  0 |  * 24   * | 1  0  1  {5/2}
 3 |   1  2 |  *  * 120 | 0  1  1
---+--------+-----------+--------
20 |  60  0 | 12 12   0 | 2  *  *  ditdid
10 |  10 10 |  2  0  10 | * 12  *  pap
10 |  10 10 |  0  2  10 | *  * 12  stap

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