Длина прямоугольника равна 1/4м , а его площадь 75 см^2.найди периметр этого прямоугольника

Длина прямоугольника равна 1/4м , а его площадь 75 см^2.найди периметр этого прямоугольника
- Предмет:
  Математика
- Автор:
  daisycxtr
- 6 лет назад

Ответы 2

1м=100см1/4м=25см - длина прямоугольника1)75÷25=3 см - ширина прямоугольника2)25+3=28 см - периметр
- Автор:
  campbell98
- 6 лет назад
- 0
1/4м это 25 см. Площадь это длина × ширина, значит обратное действие 75 см в квадрате ÷ на длину, т.е на 25 см получается 3 см ширина. Периметр все стороны складывает, т.е. 25см+25см+3см+3см=56см.
- Автор:
  sethharrison
- 6 лет назад
- 0
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