f = (1, 0)
g = (9, 0)
poly1, f_1, g_1, h_1, i, h, t = Polygon(f, g, 4)
O = (5, 4)
A = Point(h_1)
j = Segment(O, A)
k = OrthogonalLine(O, j)
B = Intersect(k, g_1)
l = Segment(O, B)
C = Point(f_1)
m = Segment(O, C)
n = OrthogonalLine(O, m)
D = Intersect(n, i)
p = Segment(O, D)
α = Angle(D, O, C)
β = Angle(B, O, A)
poly2, o, a, t_1, d = Polygon(O, A, t, D)
poly3, o_1, c, g_2, b = Polygon(O, C, g, B)