B = (-0.6647869028679884, -0.07324389024139219)
A = (-0.6647869028679884, -2.577120648562282)
a = Ray(B, A)
I = Point(a)
b = OrthogonalLine(I, a)
K = Point(b)
c = Segment(A, K)
d = Segment(K, B)
α = Angle(A, K, I)
β = Angle(B, K, A)
γ = Angle(K, I, A)
e = Segment(I, K)
f = Segment(B, I)