A = (-2.553569461007146, -3.643754655708102)
B = (11.818009173567036, -3.7994035217865227)
a = Segment(A, B)
b = OrthogonalLine(A, a)
A' = Rotate(A, 329.99999999999994*°, B)
α = Angle(A', B, A)
c = Line(B, A')
C = Intersect(b, c)
d = Segment(C, B)
e = Segment(C, A)
β = Angle(B, A, C)