Acronym  did 
TOCID symbol  ED* 
Name 
dodecadodecahedron, great dodecadodecahedron 
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Circumradius  1 
Vertex figure  [(5/2,5)^{2}] 
General of army  id 
Colonel of regiment  (is itself locally convex – other uniform polyhedral members: gidhei sidhei – other edge facetings) 
Dihedral angles 

Confer 

External links 
As abstract polytope did is automorph, thereby interchanging the roles of pentagons and pentagrams. As such it could be seen to be a nonregular realization of the regular abstract polyhedron {5,4}_{6} (where the index just denotes the size of the corresponding Petrie polygon), an according modwrap of peat.
Note that did can be thought of as the external blend of 12 peppies + 12 stappies. This decomposition is described as the degenerate segmentochoron oo5ox5/2oo&#x.
Incidence matrix according to Dynkin symbol
o5/2x5o . . .  30  4  2 2 +++ . x .  2  60  1 1 +++ o5/2x .  5  5  12 * . x5o  5  5  * 12 snubbed forms: o5/2β5o
o5/3x5o . . .  30  4  2 2 +++ . x .  2  60  1 1 +++ o5/3x .  5  5  12 * . x5o  5  5  * 12
o5/4x5/2o . . .  30  4  2 2 +++ . x .  2  60  1 1 +++ o5/4x .  5  5  12 * . x5/2o  5  5  * 12
o5/4x5/3o . . .  30  4  2 2 +++ . x .  2  60  1 1 +++ o5/4x .  5  5  12 * . x5/3o  5  5  * 12
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