A = Point(yAxis)
B = (6, 6)
C = Point(xAxis)
D = Intersect(xAxis, yAxis)
poly1, a, b, c, d = Polygon(A, B, C, D)
t = 1 (slider from 0 to 6, step 1)
E: (t, 0)
F: (6, t)
poly2, a_1, e, c_1, f = Polygon(A, E, C, F)
Textepoly2: "Aire " + (Name[A]) + (Name[E]) + (Name[C]) + (Name[F]) + " = " + poly2