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Автор - murzicik

ПЛИЗ ПОМОГИТЕ ОЧЕНЬ СРОЧНО .МНЕ НУЖНО НА ЗАВТРА. Я НЕ ЗНАЮ КАК СДЕЛАТЬ.

Ответ

Автор - kravchukeka

А. У двух фигур вместе 7 равных сторон.

42:7=6мм- длина стороны. 6*3=18мм - периметр треугольника.

6*4=24мм - периметр квадрата

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