Предмет: Математика, автор: Аноним

Периметр прямокутника
дорівнює 64 см, а його сто-
рони пропорційні числам
3 і 5. Знайди найбільшу
сторону прямокутника.​

Ответы

Автор ответа: LN330068
5

Ответ:У прямоугольника противоположные стороны равны,их всего четыре,поэтому мы подсчитаем сколько частей составляют стороны прямоугольника

2•(3+5)=16

Т.к периметр-это сумма всех сторон,то узнаём чему равна 1 часть

64:16=4 см

Одна сторона прямоугольника равна

4•3=12 см и противоположная ей тоже равна 12 см

Вторая сторона прямоугольника равна

4•5=20 см и противоположная ей-20 см

Проверка

2•(12+20)=64 см

Пошаговое объяснение:

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