x + 2y = 30

x + y = 20

2x + y = 36

200x + 300y

A = Intersect(a, d)
B = Intersect(a, b)
C = Intersect(b, c)
D = Intersect(c, e)
E = Intersect(d, e)
πολύγ.1, a_1, e_1, d_1, c_1, b_1 = Polygon(A, E, D, C, B)