Mit Schnittwinkel

S = Intersect(h, g)
α = Angle(g, h)
a = OrthogonalLine(S, h)
A = Point(a)
u = Vector(S, A)
b = OrthogonalLine(S, g)
C = Point(b)
v = Vector(S, C)
β = Angle(v, u)
c = false