Acronym | stappy, 5/2-pyr |
Name |
pentagrammic pyramid, stellated pentagonal pyramid |
© | |
Circumradius | sqrt[(5-sqrt(5))/8] = 0.587785 |
Vertex figures | [35/2], [3,3,5/2] |
General of army | ov5oo&#x |
Colonel of regiment | (is itself locally convex) |
Dihedral angles |
|
Face vector | 6, 10, 6 |
Confer | |
External links |
As abstract polytope stappy is isomorph to peppy, thereby replacing the base pentagram by a pentagon.
This polyhedron is an edge-faceting of the small stellated dodecahedron (sissid).
Incidence matrix according to Dynkin symbol
ox5/2oo&#x → height = sqrt((5+sqrt(5))/10) = 0.850651
(pt || {5/2})
tip o. o. | 1 * | 5 0 | 5 0
base .o .o | * 5 | 1 2 | 2 1
----------------+-----+-----+----
lace oo5/2oo&#x | 1 1 | 5 * | 2 0
base .x .. | 0 2 | * 5 | 1 1
----------------+-----+-----+----
coat ox ..&#x | 1 2 | 2 1 | 5 *
base .x5/2.o | 0 5 | 0 5 | * 1
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