A = (-2.68, -0.26)
B = (3.64, -1.06)
C = (2.14, 4.88)
a = Ray(A, B)
b = Ray(A, C)
D = Point(a)
c = Circle(A, D)
F = Intersect(c, b)
d = OrthogonalLine(F, b)
e = OrthogonalLine(D, a)
G = Intersect(d, e)
f = Segment(F, G)
g = Segment(G, D)
h = Line(A, G)
α = Angle(B, D, G)
β = Angle(G, F, C)