A = (-8, -15)
E = Point(Segment[A, (x(A) + 7, y(A))])
c = Circle(A, E)
f = Ray(E, A)
H = Intersect(c, f, 2)
d = Semicircle(H, E)
j = Segment(E, H)
G = Point(Segment[E, (x(E), y(E) + 6)])
D = PointIn(d)
C = (-13.010011771212918, -17.688485408097755)
β = Angle(H, E, D)
i = Segment(G, E)
g = Segment(D, E)
α = Angle(G, E, D)