A = (0.48, -2.02)
B = (5.8, -2)
a = Segment(A, B)
b = OrthogonalLine(A, a)
C = Point(b)
c = Segment(C, B)
d = Segment(C, A)
α = Angle(B, A, C)
β = Angle(C, B, A)
γ = Angle(A, C, B)
e = Distance(d, a)