Difference between revisions of "2023 SSMO Team Round Problems/Problem 15"
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Latest revision as of 22:24, 15 December 2023
Problem
Consider a piece of paper in the shape of a regular pentagon with sidelength We fold it in half. We then fold it such that the vertices of the longest side become the same side. The area of the folded figure can be expressed as where are integers and is squarefree. Find (For convenience, note that )