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Published online by Cambridge University Press: 15 September 2014
When the sides of a closed polygon are bisected, and the points of bisection joined in order, a new polygon is formed. It has the same number of sides, and the same mean point of its corners, as the original polygon. In what cases is it similar to the original polygon? In what cases will two, three, or more successive operations of this kind produce (for the first time) a polygon similar to the original one?