Предмет: Геометрия, автор: Аноним

Помирите номер 3 пожалуйста

Приложения:

Ответы

Автор ответа: Ксюшка5

Пусть 1 часть параллелограмма равна х, тогда 1 (а) сторона 3х, а другая (в) х.
Р= 2(а+в)
Составляем уравнение:
2(3х+х)=40
6х+2х= 40
8х=40
х= 5
5 - 1 часть, следовательно:
5×3= 15 см - сторона а
5 см - сторона в
Ответ: 5 и 15 см

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