B = (-0.6845174125213856, 0.3256141101308255)
C = (0.7943254977908721, 0.333120926934441)
a = Segment(B, C)
O = Midpoint(a)
c_1 = Circle(O, C)
A = Point(c_1)
b = Segment(B, A)
c = Segment(A, C)