Acronym	gikepy
Name	great-icosahedral pyramid, vertex cap of gax
Circumradius	(sqrt(5)-1)/2 = 0.618034
Colonel of regiment	sissidpy
Face vector	13, 42, 50, 21
Confer	uniform relative: gax   general polytopal classes: segmentochora
External links

As abstract polytope gikepy is isomorph to ikepy, thereby replacing the base gike by ike.

Incidence matrix according to Dynkin symbol

ox3oo5/2oo&#x   → height = (1+sqrt(5))/4 = 0.809017
(pt || gike)

o.3o.5/2o.    | 1  * ♦ 12  0 | 30  0 | 20 0
.o3.o5/2.o    | * 12 ♦  1  5 |  5  5 |  5 1
--------------+------+-------+-------+-----
oo3oo5/2oo&#x | 1  1 | 12  * |  5  0 |  5 0
.x ..   ..    | 0  2 |  * 30 |  1  2 |  2 1
--------------+------+-------+-------+-----
ox ..   ..&#x | 1  2 |  2  1 | 30  * |  2 0
.x3.o   ..    | 0  3 |  0  3 |  * 20 |  1 1
--------------+------+-------+-------+-----
ox3oo   ..&#x ♦ 1  3 |  3  3 |  3  1 | 20 *
.x3.o5/2.o    ♦ 0 12 |  0 30 |  0 20 |  * 1