position centre

A = (12.357568875040698, -0.09370759754794203)
c = Circle(A, 3.5)
B = Point(c)
B' = Rotate(B, 45*°, A)
A' = Mirror(A, B')
a = Ray(A, B)
A'' = Mirror(A', a)
A''_1 = Mirror(A', A)
A'''_1 = Mirror(A'', A)
h = Circle(B, 0.3)
C = (21.234336332487363, -7.3883598641117905)
D = (15.559424907125392, -4.440943023223878)
E = (22.171387770129552, -0.3540210960914112)
α = Angle(C, D, E)
b = Ray(D, C)
d = Ray(D, E)