afstand = 4 (slider from 0 to 5, step 0.1)
A = (-8, -15)
straal = 3 (slider from 0 to 5, step 0.1)
c = Circle(A, straal)
B = Point(c)
d = Circle(B, afstand)
f = Line(A, B)
h = OrthogonalLine(B, f)
C, E = Intersect(d, h)
j = Segment(B, A)
i = Line(E, A)
F = Intersect(c, i, 1)
G = Point(h)
m = Segment(G, B)
k = Segment(A, F)
l = Segment(F, E)
β = Angle(A, B, E)
α = Angle(A, E, B)