Acronym | sidtid |
TOCID symbol | ID* |
Name |
small ditrigonary icosidodecahedron, holosnub dodecahedron, vertex figure of sidtixhi |
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Circumradius | sqrt(3)/2 = 0.866025 |
Vertex figure | [(5/2,3)3] |
Snub derivation |
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General of army | doe |
Colonel of regiment | (is itself locally convex – other uniform polyhedral members: ditdid gidtid – uniform compound member: rhom – other edge facetings) |
Dual | stai |
Dihedral angles |
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Face vector | 20, 60, 32 |
Confer |
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External links |
As abstract polytope sidtid is isomorphic to gidtid, thereby replacing pentagrams by pentagons.
Sidtid also can be obtained as a blend of gidtid with ditdid, blending out the pentagons.
Incidence matrix according to Dynkin symbol
x5/2o3o3*a . . . | 20 | 6 | 3 3 -----------+----+----+------ x . . | 2 | 60 | 1 1 -----------+----+----+------ x5/2o . | 5 | 5 | 12 * x . o3*a | 3 | 3 | * 20
o3/2x5/3o3*a . . . | 20 | 6 | 3 3 ----------+----+----+------ . x . | 2 | 60 | 1 1 ----------+----+----+------ o3/2x . | 3 | 3 | 20 * . x5/3o | 5 | 5 | * 12
o3/2o5/3x3*a . . . | 20 | 6 | 3 3 -------------+----+----+------ . . x | 2 | 60 | 1 1 -------------+----+----+------ . o5/3x | 5 | 5 | 12 * o . x3*a | 3 | 3 | * 20
x3/2o3/2o5/2*a . . . | 20 | 6 | 3 3 ---------------+----+----+------ x . . | 2 | 60 | 1 1 ---------------+----+----+------ x3/2o . | 3 | 3 | 20 * x . o5/2*a | 5 | 5 | * 12
β5o3o both( . . . ) | 20 | 6 | 3 3 --------------+----+----+------ sefa( β5o . ) | 2 | 60 | 1 1 --------------+----+----+------ β5o . ♦ 5 | 5 | 12 * sefa( β5o3o ) | 3 | 3 | * 20 starting figure: x5o3o
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