Area 2

Area 3

∑Aree 2e3

Area 1

A = (1, -3)
B = (5, -3)
a = Segment(A, B)
b = OrthogonalLine(A, a)
C = Point(b)
poli1, c, a_1, b_1 = Polygon(A, B, C)
poli2, b_2, a_2, d, e, D, E = Polygon(B, A, 4)
poli3, c_1, b_3, f, g, F, G = Polygon(C, B, 4)
poli4, a_3, c_2, h, i, H, I = Polygon(A, C, 4)
A2: poli2
A5: poli4
Testopoli4: "Area 3= " + poli4 + ""
Testopoli2: "Area 2= " + poli2 + ""
Testopoli3: "Area 1  = " + poli3 + ""
A11: poli3
A8: A2 + A5