A = (-1, 4.5)
B = (-1, 3.5)
C = (0, 4)
Vieleck1, c, a, b = Polygon(A, B, C)
D = (0, 2.5)
E = (1, 3)
F = (1, 4)
G = (0, 3.5)
Vieleck2, d, e, f, g = Polygon(D, E, F, G)
H = (-0.5, 2.5)
I = (-0.5, 1.5)
J = (-1.5, 2)
Vieleck3, j, h, i = Polygon(H, I, J)
K = (1.5, 6)
L = (1.5, 2.5)
k = Line(K, L)
D' = Mirror(D, k)
E' = Mirror(E, k)
F' = Mirror(F, k)
G' = Mirror(G, k)
Vieleck2', d', e', f', g' = Polygon(D', E', F', G')
H' = Mirror(H, k)
I' = Mirror(I, k)
J' = Mirror(J, k)
Vieleck3', j', h', i' = Polygon(H', I', J')
A' = Mirror(A, k)
B' = Mirror(B, k)
C' = Mirror(C, k)
Vieleck1', c', a', b' = Polygon(A', B', C')