X = 1.59 (slider from 0 to 10, step 0.01)
A = (0, 0)
C: (X + 1, 0)
B: (X, 0)
D: (X, 2)
a = Segment(A, C)
b = Segment(B, D)
c = OrthogonalLine(C, xAxis)
d = Ray(A, D)
E = Intersect(c, d)
stige = Segment(A, E)
f = Ray(C, E)
α = Angle(E, C, B)
β = Angle(D, B, A)
e = Segment(A, B)
g = Segment(B, C)