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OPM 2024 Problem 2

  • Final day 1

Let ABCABC be a triangle and D,ED,E and FF the midpoints of sides BC,ACBC, AC and BCBC . Medians ADAD and BEBE are perpendicular, AD=12AD = 12 and BE=9BE = 9 . What is the value of CFCF ?

Dataset text AI-MO AoPS. Quoted with source.

Official text: Portuguese Mathematical Olympiad 2024 official paper, page 1.

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