Вопрос школьника по предмету Математика
Найди площадь прямоугольного прямоугольника, если известно, что одна сторона,образующая прямой угол равна 7 см, а другая в 2 раза больше.
Ответ учителя по предмету Математика
1 сторона — 7 см
2 сторона — 7*2 = 14 см
S прямоугольного треугольника = (a*b)/2
S = (14*7)/2 = 49 см
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