Symmetric Canonical Self-Dual Hendecahedra

40 total:  12 

18 have C2 symmetry:  6 

10 have 9 edge lengths:  1 

(box: x-ray)  (F: faces)  (slider: perspective)  (image: L=rotate R=zoom)  (M: metrics)

Self-Dual Hendecahedron #12 (canonical)