O = (-4.061030336611548, 2.5710023565343896)
X = (5.71329638079489, 0.7325375267204031)
a = Ray(O, X)
Q = (-6.756718464253021, 7.436815885380081, 3.500000000000001)
c = Line(Q, a)
OA = 8.5 (slider from 1 to 10, step 0.5)
e = Circle(O, OA)
A = Intersect(e, a)
f = Sphere(Q, OA)
D, A' = Intersect(c, f)
OB = 5 (slider from 1 to 10, step 0.5)
h = Circle(O, OB)
U = Point(c)
i = Ray(Q, U)
k = Sphere(Q, OB)
l = Segment(A, A')
q = Segment(Q, O)
unghi = 1.2566370614359172 rad (slider from 0*° to 90*°, step 1*°)
Y = Rotate(X, unghi, O)
δ = Angle(X, O, Y)
b = Ray(O, Y)
B = Intersect(h, b, 1)
d = Line(Q, b)
C, B' = Intersect(d, k)
V = Point(d)
g = Ray(Q, V)
α = Angle(i, g)
j = Segment(B', A')
m = Segment(B, A)
n = Segment(B', B)