Acronym penppy
Name penp pyramid,
vertex-pyramid of ril
|,>,O device line pyramid pyramid pyramid prism pyramid = |>>>|>
Circumradius sqrt(5/7) = 0.845154
Lace city
in approx. ASCII-art
o3o3o3o   x3o3o3o
                 
                 
                 
                 
  x3o3o3o        
Confer
uniform relative:
ril  
related segmentopeta:
rapa penp  
general polytopal classes:
segmentopeta  

Incidence matrix according to Dynkin symbol

ox3oo3oo3oo ox&#x   → height = sqrt(7/20) = 0.591608
(pt || penp)

o.3o.3o.3o. o.    | 1  *  10  0 0 | 20 5  0  0 | 20 10  0  0 | 10 10 0 0 | 2 5 0
.o3.o3.o3.o .o    | * 10 |  1  4 1 |  4 1  6  4 |  6  4  4  6 |  4  6 1 4 | 1 4 1
------------------+------+---------+------------+-------------+-----------+------
oo3oo3oo3oo oo&#x | 1  1 | 10  * * |  4 1  0  0 |  6  4  0  0 |  4  6 0 0 | 1 4 0
.x .. .. .. ..    | 0  2 |  * 20 * |  1 0  3  1 |  3  1  3  3 |  3  3 1 3 | 1 3 1
.. .. .. .. .x    | 0  2 |  *  * 5 |  0 1  0  4 |  0  4  0  6 |  0  6 0 4 | 0 4 1
------------------+------+---------+------------+-------------+-----------+------
ox .. .. .. ..&#x | 1  2 |  2  1 0 | 20 *  *  * |  3  1  0  0 |  3  3 0 0 | 1 3 0
.. .. .. .. ox&#x | 1  2 |  2  0 1 |  * 5  *  *   0  4  0  0 |  0  6 0 0 | 0 4 0
.x3.o .. .. ..    | 0  3 |  0  3 0 |  * * 20  * |  1  0  2  1 |  2  1 1 2 | 1 2 1
.x .. .. .. .x    | 0  4 |  0  2 2 |  * *  * 10 |  0  1  0  3 |  0  3 0 3 | 0 3 1
------------------+------+---------+------------+-------------+-----------+------
ox3oo .. .. ..&#x  1  3 |  3  3 0 |  3 0  1  0 | 20  *  *  * |  2  1 0 0 | 1 2 0
ox .. .. .. ox&#x  1  4 |  4  2 2 |  2 2  0  1 |  * 10  *  * |  0  3 0 0 | 0 3 0
.x3.o3.o .. ..     0  4 |  0  6 0 |  0 0  4  0 |  *  * 10  * |  1  0 1 1 | 1 1 1
.x3.o .. .. .x     0  6 |  0  6 3 |  0 0  2  3 |  *  *  * 10 |  0  1 0 2 | 0 2 1
------------------+------+---------+------------+-------------+-----------+------
ox3oo3oo .. ..&#x  1  4 |  4  6 0 |  6 0  4  0 |  4  0  1  0 | 10  * * * | 1 1 0
ox3oo .. .. ox&#x  1  6 |  6  6 3 |  6 3  2  3 |  2  3  0  1 |  * 10 * * | 0 2 0
.x3.o3.o3.o ..     0  5 |  0 10 0 |  0 0 10  0 |  0  0  5  0 |  *  * 2 * | 1 0 1
.x3.o3.o .. .x     0  8 |  0 12 4 |  0 0  8  6 |  0  0  2  4 |  *  * * 5 | 0 1 1
------------------+------+---------+------------+-------------+-----------+------
ox3oo3oo3oo ..&#x  1  5 |  5 10 0 | 10 0 10  0 | 10  0  5  0 |  5  0 1 0 | 2 * *
ox3oo3oo .. ox&#x  1  8 |  8 12 4 | 12 4  8  6 |  8  6  2  4 |  2  4 0 1 | * 5 *
.x3.o3.o3.o .x     0 10 |  0 20 5 |  0 0 20 10 |  0  0 10 10 |  0  0 2 5 | * * 1

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