Spostare i vertici del quadrato sulla griglia, 
notando che la sua area ...
Come spiegarlo?

A = (1, 1)
B = (3, 0)
poly1, a, b, c, d, C, D = Polygon(A, B, 4.0)
e = Line(A, xAxis)
f = Line(B, yAxis)
g = Line(C, xAxis)
h = Line(D, yAxis)
E = Intersect(e, f)
F = Intersect(f, g)
G = Intersect(g, h)
H = Intersect(e, h)
i = Line(A, yAxis)
j = Line(B, xAxis)
k = Line(C, yAxis)
l = Line(D, xAxis)
I = Intersect(i, j)
J = Intersect(j, k)
K = Intersect(k, l)
L = Intersect(i, l)
poly2, a_1, i_1, b_1, e_1 = Polygon(A, I, B, E)
poly3, b_2, j_1, c_1, f_1 = Polygon(B, J, C, F)
poly4, c_2, k_1, d_1, g_1 = Polygon(C, K, D, G)
poly5, d_2, l_1, a_2, h_1 = Polygon(D, L, A, H)