Higher Genus Toroidal Solids

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Heptagonal Dodecahedron (type C) (form 1)
form 1
Vertices:  28  (28[3])
Faces:12  ({6 * 2} nonconvex heptagons)
Edges:42  (7 different lengths)
Symmetry:  3-fold Dihedral  (D3)
(values below based on integer coordinates)
Edge 1 (6):  3*sqrt(5)    ≈6.7082039324993690892
Edge 2 (6):  9
Edge 3 (9):  2*sqrt(21)    ≈9.1651513899116800132
Edge 4 (6):  12
Edge 5 (6):  24
Edge 6 (3):  12*sqrt(5)    ≈26.832815729997476357
Edge 7 (6):  30
Volume:5256  [EXACT]