Maths
posted by Sam .
An irregular octagon R has vertices 6, 2), (2, 6), (−1, 5), (−5, 1), (−6, −2),
(−2, −6), (1, −5) and (5, −1).
Using standard notation, write down the elements of the symmetry group S(R) of R, giving a brief description of the
geometric eﬀect of each symmetry on points in the plane.
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