Предмет: Математика, автор: taysonrelect

Площа прямокутника дорівнює 3 1/3 см2. Знайдіть периметр прямокутника, якщо одна з його сторін дорівнює 5 см. Пожайлуста помогите.

Ответы

Автор ответа: VasiaPupkin3228

Нехай а,в-сторони прямокутника, S-площа, Р-периметр. Тоді маємо:
а=5; S=а*в=3 1/3 см2 за умовою.
в=S/а=3 1/3 поділити на 5 =(10/3)/5=10/15=2/3.
P=2(а+в)=2(5+2/3)=10+1 1/3=11 1/3

П.С Надіюсь ти розбереш що тут написано))))

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