A = (3, 3)
B = (9, 7)
a = Segment(A, B)
C = (9, 3)
b = Segment(A, C)
c = Segment(B, C)
D = Point(a)
d = Segment(C, D)
α = Angle(B, C, D)
polígono1, a_1, c_1, d_1 = Polygon(C, D, A)
E = (4, -3)
F = (11, -3)
e = Segment(E, F)
G = Point(e)
H = (8.914809116248549, 0.40083269209097316)
f = Segment(H, G)
β = Angle(F, G, H)
γ = Angle(H, G, E)
δ = Angle(D, C, A)