A = (-2.803054852237697, 4.14777134822346)
B = (-0.47464938717115474, 4.682675306414422)
C = (1.8599999999999994, 3.62)
D = (-0.04987271449009639, 1.6935061282884563)
poly1, a, b, c, d = Polygon(A, B, C, D)
e = Ray(C, B)
f = Ray(B, A)
g = Ray(A, D)
h = Ray(D, C)
α = Angle(e, f)
β = Angle(f, g)
γ = Angle(g, h)
δ = Angle(h, e)
ε = Angle(f, e)
ζ = Angle(g, f)
η = Angle(h, g)
θ = Angle(e, h)