L = (0.48, -2.02)
M = (5.8, -2)
a = Segment(L, M)
b = OrthogonalLine(L, a)
N = Point(b)
c = Segment(N, M)
d = Segment(N, L)
α = Angle(M, L, N)
β = Angle(N, M, L)
γ = Angle(L, N, M)
e = Distance(a, d)