C = (18, -4)
Q = (10, -4)
k = Line(Q, C)
lengte = 8 (slider from 0 to 10, step 0.1)
p = Circle(Q, lengte / 2)
D, E = Intersect(p, k)
d = Circle(E, D)
c = Circle(D, E)
O, P = Intersect(c, d)
s = Segment(O, P)
stap = 9 (slider from 0 to 9, step 1)
e = Segment(O, Q)
α = Angle(D, O, Q)
β = Angle(Q, O, E)
f = Segment(D, O)
g = Segment(E, O)
h = Segment(D, Q)
i = Segment(Q, E)
j = Segment(D, E)