afstand = 1 (slider from 0 to 5, step 0.1)
straal = 3 (slider from 0 to 5, step 0.1)
A = (-8, -15)
p = Circle(A, afstand)
c = Circle(A, straal)
C = Point(c)
B = Point(c)
f = Segment(B, C)
g = OrthogonalLine(A, f)
E = Intersect(g, f)
k = Ray(A, E)
H = Intersect(p, k)
d = CircleArc(A, C, B)
F = Point(d)
e = CircleArc(H, C, B)
h = Segment(C, F)
G = Intersect(e, h, 2)
i = Segment(G, B)
j = Segment(F, B)
α = Angle(B, F, C)
β = Angle(C, G, B)