Предмет: Математика, автор: 1231379

найти периметр четырех угольника две стороны которого имеют длину по 30мм каждая а остальные стороны по 20 мм каждая. Выразить ответ в сантиметрах

Ответы

Автор ответа: Дашенька975

(30 мм+20 мм)×2=10см
Ответ: периметр четырехугольника равен 10 см

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