Revision history of "1998 IMO Problems/Problem 1"

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  • (cur | prev) 16:48, 23 March 2015Sigmundur (talk | contribs). . (323 bytes) (+323). . (Created page with "In the convex quadrilateral ABCD, the diagonals AC and BD are perpendicular and the opposite sides AB and DC are not parallel. Suppose that the point P , where the perpendicul...")
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