Symmetric Canonical Self-Dual Tridecahedra

177 total:  7 

3 have C4v symmetry:  1 

2 have 4 edge lengths:  2 

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Self-Dual Tridecahedron #7 (canonical)
Vertices:  13  (4[3] + 1[4] + 4[4] + 4[4])
Faces:13  (4 isosceles triangles + 1 square + {4 * 2} kites)
Edges:24  (4 different lengths)
Symmetry:  4-fold Pyramidal  (C4v)
(values below based on edge-scribed radius = 1)
Edge 1 (8):  sqrt(root[8th-order polynomial])    ≈1.0132673366177729053
Edge 2 (4):  sqrt(root[8th-order polynomial])    ≈1.0535716574058237044
Edge 3 (4):  sqrt(root[8th-order polynomial])    ≈1.1350416346634254591
Edge 4 (8):  sqrt(root[8th-order polynomial])    ≈1.2164915081222890749
Edge-scribed Radius:  1
Volume:root[8th-order polynomial]    ≈3.6591794194852029472