Предмет: Математика, автор: Аноним

ПОМАГИТЕ СРОЧНО. одна сторона 80см , а другая состовляет 65% длинны первой. найдите периметр и плошадь прямоугольника с этими сторонами

Ответы

Автор ответа: zaurzakirov
0
80/100= 0.8 ( см ) составляет 1 процент
0.8 умножаем на 65 = 52 ( см ) вторая сторона
52 умножаем на 80 = 4160 ( см2 ) площадь
(52 + 80) x 2 = 264 ( см ) периметр
Автор ответа: anyakharchenko2
1
1)80 : 100 * 65 = 52(см) - 2 сторона
2) (80+52) * 2 = 264(см) - периметр
3) 80*52 = 4160 (см2) - площадь


verhovodov777: 1)80 : 100 * 65 = 52(см) - 2 сторона
2) (80+52) * 2 = 264(см) - периметр
3) 80*52 = 4160 (см2) - площадь
Или
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