Parallel-LIne-Angles

A = (-10.3, -1.79)
B = (1.54, 0.81)
f = Segment(A, B)
C = (-11.4, 1.69)
g = Line(C, f)
D = Point(g)
h = Segment(C, D)
E = Point(h)
F = Point(f)
i = Line(E, F)
G = Point(i)
c = Circle(E, G)
H = Point(i)
d = Circle(F, H)
α = Angle(D, E, G)
β = Angle(G, E, C)
γ = Angle(C, E, F)
δ = Angle(D, E, F)
ε = Angle(E, F, A)
ζ = Angle(A, F, H)
η = Angle(H, F, B)
θ = Angle(B, F, E)
j = Line(C, D)
k = Line(B, A)