A = (1.289299070451842, 6.032928488034918)
B = (19.83370168881416, 11.633976540216338)
a = Line(A, B)
C = (9.244744723508303, 6.2163494573570555)
D = (11.151406127800401, 7.913487630408264)
b = Line(C, D)
E = (2.0148234295426994, 11.314745822216361)
F = (18.35363199626881, 3.740271513307809)
c = Line(E, F)
G = Intersect(a, c)
H = Intersect(b, c)
α = Angle(E, G, A)
β = Angle(B, G, E)
γ = Angle(H, G, B)
δ = Angle(F, H, D)
ε = Angle(D, H, G)
ζ = Angle(C, H, G)
η = Angle(F, H, C)
θ = Angle(A, G, H)