Предмет: Математика, автор: 123планета

длина прямоугольногоучастка земли 32м.сторона другого участка земли квадратнрй формы 160дм.расчитайте. сэолько метров проволочной сетки нужно ,чтобы обнести каждый часток,если известно, что площадь у них равны

Ответы

Автор ответа: sls09

160 *160 =25600=256 кв.м -площадь участков

256: 32 = 8 м - ширина прямоугольного участка
32*2 +8*2=80 м -периметр прямоугольного участка(нужно 80 метров сетки)
160 дм=16 м
16*4 = 64 м -периметр квадратного участка (нужно 64 метра проволоки)

Автор ответа: dctdjkjl288

160х4=640м 160х160:32=800м (800+32)х2=1664м прямоугольный участок 1664м квадратный участок 640м

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Transcript

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Listening –Reading

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