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Автор - svetovid4

В прямоугольнике длина диагонали равна 13 см а длина меньшей стороны равна 5 см Найдите площадь прямоугольника​

Ответ

Автор - FelixMango

Ответ:

65

Пошаговое объяснение:

найдем бóльшую сторону

13^2=5^2+×^2

169=25+х^2

×^2=169-25 (=144)

×=12

площадь равна

5×13=65

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