Предмет: Математика, автор: dashabrinzevych

Периметр прямокутника 280см.Ширина-6дм.Знайди довжину цього прямокутника

Ответы

Автор ответа: bonussuports

Ответ: Довжина = 80 см

Пошаговое объяснение:

У даному випадку, периметр прямокутника дорівнює 280 см, а ширина - 6 дм, що дорівнює 60 см.

За формулою, периметр прямокутника = 2 * (довжина + ширина).

Розкладаємо формулу:

140 см = довжина + 60 см

Перенесемо 60 см наліво:

80 см = довжина.

Тому довжина цього прямокутника дорівнює 80 см.

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