A = Intersect(xAxis, yAxis)
B = Point(xAxis)
C = (20, 13)
D = Point(yAxis)
poly1, a, b, c, d = Polygon(A, B, C, D)
poly2, e, f, g, h, E, F = Polygon(D, A, 4)
poly3, i, j, k, l, G, H = Polygon(C, F, 4)
poly4, m, n, p, q, I, J = Polygon(G, E, 4)
poly5, r, s, t, a1, K, L = Polygon(H, J, 4)
poly6, b1, c1, d1, e1, M, N = Polygon(L, K, 4)
poly7, f1, g1, o, i1, O, P = Polygon(N, M, 4)
poly8, h1, j1, k1, l1, Q, R = Polygon(P, O, 4)
poly9, m1, n1, p1, q1, S, T = Polygon(R, Q, 4)