O = (2.504013378287433, -1.63251579531076)
M = (-7.5, 5)
c = Circle(O, M)
O' = (15.619888521467562, 6.039033816737994)
C_1 = (26.673519145279744, 8.926176143853118)
B_1 = Circle(O', C_1)
a = Segment(O, O')
A, B = Intersect(B_1, c)
b = Segment(A, B)
d = Line(A, O)
e = Line(A, O')
D_1, C = Intersect(c, d)
f = Segment(C, B)
D, F = Intersect(B_1, e)
I = Intersect(a, b)
α = Angle(I, O, A)
β = Angle(B, C, O)
g = Segment(B, D)