A = (-4.073545454545454, 4.563747474747474)
B = (4.188454545454546, 6.030414141414141)
C = (0.81, 1.5555555555555558)
a = Line(A, B)
b = Segment(A, C)
D = (-3.9233454545454567, 2.496272727272727)
c = Circle(A, D)
E = Point(c)
α = Angle(D, A, E)
F, G = Intersect(c, a)