Предмет: Математика, автор: abylgazina1987

найдите площадь квадрата, если его периметр равен периметру прямоугольника со сторонами 15 см и 5 см

Ответы

Автор ответа: ideykalo1337

Ответ:

100см²

Пошаговое объяснение:

Периметр равен : (15+5)•2= 40 см

сторона квадрата равна: 40:4= 10 см

площадь равна : a•b = 10•10= 10см²

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