O = (8.236550129167178, -1.1363887317013166)
B_1 = (11.385378275310622, -4.31061065321688)
c = Circle(O, B_1)
B = Point(c)
a = Line(B, O)
A = Intersect(c, a, 2.0)
R = Segment(B, O)
R_1 = Segment(O, A)