Предмет: Математика, автор: utesheva05

запиши и объясни, как можно найти площадь прямоугольника ABCD, умножая сумму на число, и как можно найти его по другому способу

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Автор ответа: mvsorokina81

0

Периметр прямоугольника = 2×(AB +BC), а можно сложить все стороны, т.е. Периметр прямоугольника = AB+BC+CD+AD
Площадь прямоугольника = AB×BC или = CD× AD

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