Acronym ..., cube || ike, K-4.21
Name cube atop icosahedron
 
Segmentochoron display
Circumradius 1

Incidence matrix

cube || ike   → height = (1+sqrt(5))/4 = 0.809017

8  * |  3  3 0  0 | 3  3  3  3  0 0 | 1 3  3 1 0
* 12 |  0  2 1  4 | 0  1  2  4  3 2 | 0 1  3 2 1
-----+------------+-----------------+-----------
2  0 | 12  * *  * | 2  1  1  0  0 0 | 1 2  1 0 0
1  1 |  * 24 *  * | 0  1  1  2  0 0 | 0 1  2 1 0
0  2 |  *  * 6  * | 0  0  2  0  2 0 | 0 1  2 0 1
0  2 |  *  * * 24 | 0  0  0  1  1 1 | 0 0  1 1 1
-----+------------+-----------------+-----------
4  0 |  4  0 0  0 | 6  *  *  *  * * | 1 1  0 0 0
2  1 |  1  2 0  0 | * 12  *  *  * * | 0 1  1 0 0
2  2 |  1  2 1  0 | *  * 12  *  * * | 0 1  1 0 0
1  2 |  0  2 0  1 | *  *  * 24  * * | 0 0  1 1 0
0  3 |  0  0 1  2 | *  *  *  * 12 * | 0 0  1 0 1
0  3 |  0  0 0  3 | *  *  *  *  * 8 | 0 0  0 1 1
-----+------------+-----------------+-----------
8  0 | 12  0 0  0 | 6  0  0  0  0 0 | 1 *  * * * cube
4  2 |  4  4 1  0 | 1  2  2  0  0 0 | * 6  * * * trip
2  3 |  1  4 1  2 | 0  1  1  2  1 0 | * * 12 * * squippy
1  3 |  0  3 0  3 | 0  0  0  3  0 1 | * *  * 8 * tet
0 12 |  0  0 6 24 | 0  0  0  0 12 8 | * *  * * 1 ike

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