O = (0.48, -2.02)
Q = (5.8, -2)
a = Segment(O, Q)
b = OrthogonalLine(O, a)
P = Point(b)
c = Segment(P, Q)
d = Segment(P, O)
α = Angle(Q, O, P)
β = Angle(P, Q, O)
γ = Angle(O, P, Q)
e = Distance(a, d)