A = (-7.04, -1.32)
B = (4.4, -1.38)
poly1, f, g, h, i, C, D = Polygon(A, B, 4)
j = Segment(A, C)
M = Point(j)
k = OrthogonalLine(M, f)
l = OrthogonalLine(M, i)
P = Intersect(i, l)
Q = Intersect(k, h)
m = Line(Q, B)
n = Line(P, C)
E, F = Intersect(m, poly1)
G = Intersect(n, m)
α = Angle(C, G, Q)