Найди площадь и периметр прямоугольника со сторонами 3дм и 7дм.
Tiktak222
1
02.02.2022 17:38
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1
ответ:21 и 20
Пошаговое объяснение:
3х7=21 пл
(7+3)х2=20
Пошаговое объяснение:
S=7×3=21(дм)
P=7+3×2=20(ди)