A = (-3, -1)
B = (0, -3)
C = (9, 1)
D = (3, 5)
poly1, a, b, c, d = Polygon(A, B, C, D)
E = Midpoint(d)
F = Midpoint(c)
G = Midpoint(b)
H = Midpoint(a)
poly2, e, f, g, h = Polygon(E, F, G, H)
text1: "Area pequeña = " + poly2
text2: "Area grande = " + poly1
text3: "Razón: " + poly2 + " /  " + poly1 + " = " + (poly2 / poly1)