A = (0, 1)
B = (2, 3)
C = (4, 2)
D = (1, -1)
E = (5, 1)
F = (7, 2)
G = (9, 1)
H = (9, -1)
đa giác1, a, b, c, d = Polygon(A, B, C, D)
đa giác2, e, f, g, h = Polygon(E, F, G, H)