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Серединные перпендикуляры к сторонам AB и AC треугольника ABC пересекают медиану AM в точках D и E соответственно. Прямые BD и CE пересекаются в точке F. Докажите, что F лежит на окружности, проходящей через A и середины сторон AB и AC.



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#геометрия #задача

Серединные перпендикуляры к сторонам AB и AC треугольника ABC пересекают медиану AM в точках D и E соответственно. Прямые BD и CE пересекаются в точке F. Докажите, что F лежит на окружности, проходящей через A и середины сторон AB и AC.

BY JustScience | Олимпиадная Математика




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