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Ответ

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Ответ дан
prettypushkova

а = 3,5 см - ширина

b = 3,5 : 0,7 = 5 см - длина

S = a · b = 3,5 · 5 = 17,5 см² - площадь прямоугольника

Ответ: 17,5 см².

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