A = (3.3718437499999996, 2.680796874999999)
B = (21.316156249999995, 2.8541718749999996)
a = Line(A, B)
C = (1.4647187499999996, -3.3006406249999993)
b = Line(C, a)
D = (16.656703125000007, 6.77678125)
E = (7.70621875, -5.79290625)
c = Line(D, E)
F = Intersect(a, c)
G = Intersect(b, c)
α = Angle(D, F, B)
β = Angle(D, F, A)
γ = Angle(B, F, G)
δ = Angle(A, F, G)
H = Point(b)
ε = Angle(F, G, H)
ζ = Angle(H, G, E)
η = Angle(F, G, C)
θ = Angle(C, G, E)