Kontrolle

C: (2 | 2 | 0)
H: (0 | 2 | 2)
F: (2 | 0 | 2)
a = Segment(H, F)
k = Circle(a, C)
A = Point(k)
d1, f, c, h = Polygon(C, H, F)
d2, f_1, a_1, h_1 = Polygon(A, H, F)
α = Angle(F, C, H)
β = Angle(C, H, A)
γ = Angle(H, A, F)
δ = Angle(A, F, C)
b = false