A = (-0.16, -2.04)
H = (10.5, -1.84)
a = Segment(A, H)
b = OrthogonalLine(H, a)
B' = Rotate(H, 29.999999999999996*°, A)
α = Angle(H, A, B')
c = Ray(A, B')
B = Intersect(b, c)
d = Segment(A, B)
e = Segment(B, H)
β = Angle(B, H, A)