A = (0.68, 4.64)
B = (-1.84, -1)
C = (8.86, -0.64)
poly1, c, a, b = Polygon(A, B, C)
d = LineBisector(c)
e = LineBisector(b)
f = LineBisector(a)
D = Intersect(d, c)
E = Intersect(f, a)
g = Segment(D, E)
F = Intersect(e, b)
h = Segment(E, F)
i = Segment(F, D)
poly2, e_1, d_1, f_1 = Polygon(D, F, E)
α = Angle(B, A, C)
β = Angle(C, B, A)
γ = Angle(A, C, B)
δ, ε, ζ = Angle(poly1)
η, θ, ι = Angle(poly2)