Предмет: Геометрия, автор: ng99253

сделать надо только Б
Периметр параллелограмма равен 24 см. Найдите стороны парале-
лограма, если:
a) одна из них на 2 см больше другой;
б) одна из них в три раза меньше другой;
в) сумма трех его сторон равна 17 см.

Приложения:

СовушкинДомик: Переведите при возможности задание на русский, пожалуйста.

ng99253: ок

Ответы

Автор ответа: СовушкинДомик

Объяснение:

б) P= 2(a+b)

Пусть а=х, тогда b=3х

P= 2(x+3x)= 2*4x=8x

Зная, что Периметр равен 24 см, составим уравнение:

8х=24

х=3

а=3 см

b=3*3 см= 9 см

Ответ: стороны параллелограмма 3см;9см; 3см; 9см

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