Предмет: Математика, автор: sandistervap91024

Длина прямоугольника 75 см, его ширина составляет 30%длины. Найди площадь и периметр прямоугольника.

Ответы

Автор ответа: Аноним

1) Найдем ширину:
(75:100)*30=22,5 см
2) Найдем площадь:
S=75*22,5=1687,5 см^2
3) Найдем периметр:
P=2(75+22,5)=195 см

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