Предмет: Математика, автор: кактус1234

прямоугольник со сторонами 2 см и 5 см . найти периметр и площадь

Ответы

Автор ответа: alinamihfdf

s - 2*5=10 см.кв.
p - (2+5)*2=20 см

sera15122001: это вы решаете неправильно 2+5=7, а 7*2=14см.кв

Автор ответа: sera15122001

периметр(P)=(2+5)*2=14см
площадь(S)=2*5=10cм квадратных

alinamihfdf: неправильно 2+5=10 и умножить на 2 будет 20

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