Предмет: Математика, автор: маша0037864

номер;1054 помогите пожалуйста ....

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Автор ответа: ksuholina

у квадрата все стороны равны, а квадрата у нас 2, поэтому (4+4)*b=8b. боковых ребер 4, значит, 4*a=4a- кол-во проволоки для бок. ребер. вот формула: 8b+4a=l

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