Предмет: Математика, автор: tima1021flesh

Помогите решить, забыл как решать​

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Автор ответа: mikhaylov2angelina07
1

Ответ:

периметр-342см

площадь-1444см²

Пошаговое объяснение:

1)76÷4=19(см) ширина

2)(76×2)+(19×2)=342(см) периметр

3)76×19=1444(см²) площадь

tima1021flesh: ошибка
tima1021flesh: P=190см
Автор ответа: mihailkozlov27540
1

Пошаговое объяснение:

Найдем ширину:76 делим на 4=19см

Найдем периметр:(76+19)2=190см

Найдем площадь:76*19=1444 квадратных см

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