G: (-0.78, -1.58)
B = (1, 2)
D: (x(B), y(B) - 9)
i = Ray(B, D)
j = Ray(B, G)
I = Point(j)
m = Segment(B, G)
H = Mirror(G, i)
γ = Angle(B, H, G)
l = Segment(G, H)
β = Angle(H, G, B)
q = Segment(H, I)
ε = Angle(H, I, G)
ζ = Angle(G, H, I)
δ = Angle(G, H, I)
α = Angle(G, I, H)
f = Segment(B, H)
n = Segment(G, I)
A = (-5.0535444761971675, -6.490166688288075)