O = (0, 0)
I = (3, 0)
c = Circle(I, O)
M = Point(c)
d = Circle(M, 6)
e = Circle(O, 6)
a = Segment(O, I)
b = Segment(I, M)
A = (6, 0)
A' = (-6, 0)
B, M' = Intersect(d, e)
f = Segment(O, M')
g = Segment(M', M)
poly1, o, i, m, m' = Polygon(O, I, M, M')
α = Angle(O, I, M)
F: (α * 180 / π, poly1)