This nice 2:1 circle arc 'edge' length ratio is brought to you by this horrific equation 😱.
https://github.com/brainsmoke/geometry/blob/main/spherical/2tri1penta.scad
This nice 2:1 circle arc 'edge' length ratio is brought to you by this horrific equation 😱.
https://github.com/brainsmoke/geometry/blob/main/spherical/2tri1penta.scad