ε=2\gamma

M = (0, 0)
c = Circle(M, 3)
A = Point(c)
B = Point(c)
C = Point(c)
d1, c_1, a, b = Polygon(A, B, C)
f = Segment(A, M)
g = Segment(M, B)
γ = Angle(A, C, B)
ε = Angle(A, M, B)
h = Segment(C, M)
γ_2 = Angle(M, C, B)
α_1 = Angle(M, A, C)
α_2 = Angle(B, A, M)
β_1 = Angle(M, B, A)
β_2 = Angle(C, B, M)
γ_1 = Angle(A, C, M)
D = (3.918, -3.808)
E = (5.618, -3.808)