Предмет: Математика, автор: davidubilava05

одна из сторон прямоугольника равна 15 см,диагональ равна 25 см.чему равен периметр​

Ответы

Автор ответа: IrkaShevko
3

Ответ:

70 см

Пошаговое объяснение:

по теореме Пифагора вторая сторона равна:

b = √(25² - 15²) = √(625 - 225) = √400 = 20 (см)

Р = (20 + 15) * 2 = 70 (см)

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