A = (-6.550997599990075, 2.0863729248510667)
B = (2.292042740452536, 2.203758416095881)
a = Segment(A, B)
b = OrthogonalLine(B, a)
C = Point(b)
c = OrthogonalLine(C, b)
D = Point(c)
d = OrthogonalLine(D, c)
e = Circle(D, Segment[C, B])
E = Intersect(e, d, 1.0)
f = OrthogonalLine(E, d)
F = Point(f)
g = Segment(B, C)
h = Segment(C, D)
i = Segment(D, E)
j = Segment(E, F)
α = Angle(D, E, F)
β = Angle(E, D, C)
γ = Angle(D, C, B)
δ = Angle(A, B, C)