Acronym	tricu, J3
Name	triangular cupola, half of cuboctahedron
	© ©
Circumradius	1
Vertex figures	[(3,4)2], [3,4,6]
General of army	(is itself convex)
Colonel of regiment	(is itself locally convex)
Confer	johnson   n/d-cu   co   tobcu   etigybcu
External links

Incidence matrix according to Dynkin symbol

xx3ox&#x   → height = sqrt(2/3) = 0.816497
({3} || {6})

o.3o.    | 3 * | 2 2 0 0 | 1 2 1 0
.o3.o    | * 6 | 0 1 1 1 | 0 1 1 1
---------+-----+---------+--------
x. ..    | 2 0 | 3 * * * | 1 1 0 0
oo3oo&#x | 1 1 | * 6 * * | 0 1 1 0
.x ..    | 0 2 | * * 3 * | 0 1 0 1
.. .x    | 0 2 | * * * 3 | 0 0 1 1
---------+-----+---------+--------
x.3o.    | 3 0 | 3 0 0 0 | 1 * * *
xx ..&#x | 2 2 | 1 2 1 0 | * 3 * *
.. ox&#x | 1 2 | 0 2 0 1 | * * 3 *
.x3.x    | 0 6 | 0 0 3 3 | * * * 1