A = (-6.72, 4.96)
B = (-2.86, -1.52)
a = Line(A, B)
C = (-3.5, 5.04)
D = (-6, -3)
b = Line(C, D)
E = (-8.66, -1)
F = (-6.78, -0.58)
G = (-7.32, -3.14)
H = (-9.82, -2.1)
Vieleck1, e, f, g, h = Polygon(E, F, G, H)
E' = Mirror(E, b)
F' = Mirror(F, b)
G' = Mirror(G, b)
H' = Mirror(H, b)
Vieleck1', e', f', g', h' = Polygon(E', F', G', H')
E'_1 = Mirror(E, a)
F'_1 = Mirror(F, a)
G'_1 = Mirror(G, a)
H'_1 = Mirror(H, a)
Vieleck1'_1, e'_1, f'_1, g'_1, h'_1 = Polygon(E'_1, F'_1, G'_1, H'_1)
E'' = Mirror(E', a)
F'' = Mirror(F', a)
G'' = Mirror(G', a)
H'' = Mirror(H', a)
Vieleck1'', e'', f'', g'', h'' = Polygon(E'', F'', G'', H'')
I = Mirror(E'_1, b)
J = Mirror(F'_1, b)
K = Mirror(G'_1, b)
L = Mirror(H'_1, b)
Vieleck2, i, j, k, l = Polygon(I, J, K, L)