Acronym | querco |
TOCID symbol | rOC* |
Name |
quasirhombicuboctahedron, great rhombicuboctahedron (but not girco) |
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Circumradius | sqrt[5-2 sqrt(2)]/2 = 0.736813 |
Inradius wrt. {3} | -[3-sqrt(2)]/sqrt(12) = -0.457777 |
Inradius wrt. {4} | (sqrt(2)-1)/2 = 0.207107 |
Coordinates | ((sqrt(2)-1)/2, 1/2, 1/2) & all permutations, all changes of sign |
Vertex figure | [3/2,43] |
Volume | [10 sqrt(2)-12]/3 = 0.392837 |
Surface | 18+2 sqrt(3) = 21.464102 |
General of army | tic |
Colonel of regiment | gocco |
Dihedral angles |
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Face vector | 24, 48, 26 |
Confer |
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External links |
As abstract polytope querco is isomorphic to sirco, thereby replacing retrograde triangles by prograde ones. – As such querco is a lieutenant.
Just as sirco allows for a gyrated stack, esquigybcu (J37), this quasi-version too has an according gyrated stacking: rasquacu + inv stop + gyro rasquacu = gyquerco. In fact, both have the same vertex figure all over. But querco features full cubical symmetry, while gyquerco features 4-fold antiprismatic symmetry only, thereby dividing the according vertex set into 2 classes. As such gyquerco then would be the quasi-variant of esquigybcu.
This polyhedron is an edge-faceting of the great cubicuboctahedron (gocco).
Incidence matrix according to Dynkin symbol
x3/2o4x . . . | 24 | 2 2 | 1 2 1 --------+----+-------+------- x . . | 2 | 24 * | 1 1 0 . . x | 2 | * 24 | 0 1 1 --------+----+-------+------- x3/2o . | 3 | 3 0 | 8 * * x . x | 4 | 2 2 | * 12 * . o4x | 4 | 0 4 | * * 6
x4/3o3x . . . | 24 | 2 2 | 1 2 1 --------+----+-------+------- x . . | 2 | 24 * | 1 1 0 . . x | 2 | * 24 | 0 1 1 --------+----+-------+------- x4/3o . | 4 | 4 0 | 6 * * x . x | 4 | 2 2 | * 12 * . o3x | 3 | 0 3 | * * 8
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