A = (0.9266031746031749, -3.186285714285713)
B = (5.2751746031746, -3.1639365079365067)
poly1, f, g, h, i, C, D = Polygon(A, B, 4)
poly2, j, k, l, F = Polygon(C, B, 3)
poly3, m, n, p, E = Polygon(D, C, 3)
q = Line(A, F)
r = Line(E, B)
G = Intersect(q, r)
α = Angle(F, G, E)