Acronym trasrid
Name triangle - small-rhombicosidodecahedron duoprism
Circumradius sqrt[sqrt(5)+37/12] = 2.306383
Confer
more general:
n,srid-dip  
general polytopal classes:
segmentotera  

Incidence matrix according to Dynkin symbol

x3o x3o5x

. . . . . | 180 |   2   2   2 |  1   4   4  1  2  1 |  2  2  2  4  2 1 |  1  2  1 2
----------+-----+-------------+---------------------+------------------+-----------
x . . . . |   2 | 180   *   * |  1   2   2  0  0  0 |  2  2  1  2  1 0 |  1  2  1 1
. . x . . |   2 |   * 180   * |  0   2   0  1  1  0 |  1  0  2  2  0 1 |  1  1  0 2
. . . . x |   2 |   *   * 180 |  0   0   2  0  1  1 |  0  1  0  2  2 1 |  0  1  1 2
----------+-----+-------------+---------------------+------------------+-----------
x3o . . . |   3 |   3   0   0 | 60   *   *  *  *  * |  2  2  0  0  0 0 |  1  2  1 0
x . x . . |   4 |   2   2   0 |  * 180   *  *  *  * |  1  0  1  1  0 0 |  1  1  0 1
x . . . x |   4 |   2   0   2 |  *   * 180  *  *  * |  0  1  0  1  1 0 |  0  1  1 1
. . x3o . |   3 |   0   3   0 |  *   *   * 60  *  * |  0  0  2  0  0 1 |  1  0  0 2
. . x . x |   4 |   0   2   2 |  *   *   *  * 90  * |  0  0  0  2  0 1 |  0  1  0 2
. . . o5x |   5 |   0   0   5 |  *   *   *  *  * 36 |  0  0  0  0  2 1 |  0  0  1 2
----------+-----+-------------+---------------------+------------------+-----------
x3o x . .    6 |   6   3   0 |  2   3   0  0  0  0 | 60  *  *  *  * * |  1  1  0 0
x3o . . x    6 |   6   0   3 |  2   0   3  0  0  0 |  * 60  *  *  * * |  0  1  1 0
x . x3o .    6 |   3   6   0 |  0   3   0  2  0  0 |  *  * 60  *  * * |  1  0  0 1
x . x . x    8 |   4   4   4 |  0   2   2  0  2  0 |  *  *  * 90  * * |  0  1  0 1
x . . o5x   10 |   5   0  10 |  0   0   5  0  0  2 |  *  *  *  * 36 * |  0  0  1 1
. . x3o5x   60 |   0  60  60 |  0   0   0 20 30 12 |  *  *  *  *  * 3 |  0  0  0 2
----------+-----+-------------+---------------------+------------------+-----------
x3o x3o .    9 |   9   9   0 |  3   9   0  3  0  0 |  3  0  3  0  0 0 | 20  *  * *
x3o x . x   12 |  12   6   6 |  4   6   6  0  3  0 |  2  2  0  3  0 0 |  * 30  * *
x3o . o5x   15 |  15   0  15 |  5   0  15  0  0  3 |  0  5  0  0  3 0 |  *  * 12 *
x . x3o5x  120 |  60 120 120 |  0  60  60 40 60 24 |  0  0 20 30 12 2 |  *  *  * 3

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