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Выразим заданныеточки через координаты А, В и С: К = ((Ах+Вх)/2; (Ау+Ву)/2) = (3; -2) Л = ((Ах+Сх)/2; (Ау+Су)/2) = (2; 5) М = ((Вх+Сх)/2; (Ву+Су)/2) = (-2; 1)
запишем систему 2-ух уравнений по х и по у: {(Вх+Сх+ Ах+Сх+ Ах+Вх+)/2 = 3 + 2 +(-2) =3 {(Ву+Су + Ау+Су +Ау+Ву)/2 = (-2)+5+1 =4
{Вх+Сх+Ах = 3 {Ву+Су+Ау = 4
возвращаемся к координатам точки М и видим: М = ((Вх+Сх)/2; (Ву+Су)/2) = (-2; 1) откуда находим Вх+Сх = -2*2 = -4 и Ву+Су = 1*2 = 2
подставляем в нашу систему {-4+Ах = 3 {2+Ау = 4 и находим Ах = 7; Ау = 2 А(7;2)
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