Acronym trasirco Name triangle small-rhombicuboctahedron duoprism Circumradius sqrt[(19+6 sqrt(2))/12] = 1.513420 Volume [6+5 sqrt(2)] sqrt(3)/6 = 3.773292 Confer more general: n,sirco-dip   general polytopal classes: segmentotera Externallinks

Incidence matrix according to Dynkin symbol

```x3o x3o4x

. . . . . | 72 |  2  2  2 |  1  4  4  1  2  1 |  2  2  2  4  2 1 | 1  2 1 2
----------+----+----------+-------------------+------------------+---------
x . . . . |  2 | 72  *  * |  1  2  2  0  0  0 |  2  2  1  2  1 0 | 1  2 1 1
. . x . . |  2 |  * 72  * |  0  2  0  1  1  0 |  1  0  2  2  0 1 | 1  1 0 2
. . . . x |  2 |  *  * 72 |  0  0  2  0  1  1 |  0  1  0  2  2 1 | 0  1 1 2
----------+----+----------+-------------------+------------------+---------
x3o . . . |  3 |  3  0  0 | 24  *  *  *  *  * |  2  2  0  0  0 0 | 1  2 1 0
x . x . . |  4 |  2  2  0 |  * 72  *  *  *  * |  1  0  1  1  0 0 | 1  1 0 1
x . . . x |  4 |  2  0  2 |  *  * 72  *  *  * |  0  1  0  1  1 0 | 0  1 1 1
. . x3o . |  3 |  0  3  0 |  *  *  * 24  *  * |  0  0  2  0  0 1 | 1  0 0 2
. . x . x |  4 |  0  2  2 |  *  *  *  * 36  * |  0  0  0  2  0 1 | 0  1 0 2
. . . o4x |  4 |  0  0  4 |  *  *  *  *  * 18 |  0  0  0  0  2 1 | 0  0 1 2
----------+----+----------+-------------------+------------------+---------
x3o x . . ♦  6 |  6  3  0 |  2  3  0  0  0  0 | 24  *  *  *  * * | 1  1 0 0
x3o . . x ♦  6 |  6  0  3 |  2  0  3  0  0  0 |  * 24  *  *  * * | 0  1 1 0
x . x3o . ♦  6 |  3  6  0 |  0  3  0  2  0  0 |  *  * 24  *  * * | 1  0 0 1
x . x . x ♦  8 |  4  4  4 |  0  2  2  0  2  0 |  *  *  * 36  * * | 0  1 0 1
x . . o4x ♦  8 |  4  0  8 |  0  0  4  0  0  2 |  *  *  *  * 18 * | 0  0 1 1
. . x3o4x ♦ 24 |  0 24 24 |  0  0  0  8 12  6 |  *  *  *  *  * 3 | 0  0 0 2
----------+----+----------+-------------------+------------------+---------
x3o x3o . ♦  9 |  9  9  0 |  3  9  0  3  0  0 |  3  0  3  0  0 0 | 8  * * *
x3o x . x ♦ 12 | 12  6  6 |  4  6  6  0  3  0 |  2  2  0  3  0 0 | * 12 * *
x3o . o4x ♦ 12 | 12  0 12 |  4  0 12  0  0  3 |  0  4  0  0  3 0 | *  * 6 *
x . x3o4x ♦ 48 | 24 48 48 |  0 24 24 16 24 12 |  0  0  8 12  6 2 | *  * * 3
```