Предмет: Математика, автор: milena120583

13 плиз не могу решить

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Автор ответа: Bergo

0

P = 128
P = 2*a+2*b
128 = 2*57 + 2*b
2b = 128-114
2b=14
b=7 - ширина
S = ab=7*57=399 м^2

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