A = (-1.4405437212116947, 1.3570774984871328)
B = (3.9456119421414524, 4.4311647130297125)
a = Line(A, B)
C = (0.502600009093141, 4.3976549742414175)
P = (1.8262911375897817, 0.5366863115031433)
b = Line(C, P)
S = Intersect(a, b)
α = Angle(C, S, A)
β = Angle(B, S, C)
γ = Angle(P, S, B)
δ = Angle(A, S, P)