A = (1, 3)
B = (1, 1)
C = (2, 1)
poly1, c, a, b = Polygon(A, B, C)
D = (3, 2)
A' = Rotate(A, 270*°, D)
B' = Rotate(B, 270*°, D)
C' = Rotate(C, 270*°, D)
poly1', c', a', b' = Polygon(A', B', C')
E = (4, 1)
A'' = Rotate(A', 270*°, E)
B'' = Rotate(B', 270*°, E)
C'' = Rotate(C', 270*°, E)
poly1'', c'', a'', b'' = Polygon(A'', B'', C'')
F = (4, 2)