Предмет: Математика, автор: aenzak

помогите с 8 заданием!!!

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Автор ответа: Дилшод0093

сначала находим ширину
20/2=10
1) 20+20+10+10=60 или 2*(20+10)=60
отв: 60м сетки потребуется
2) 20*10=200
отв: Площадь 200м^2

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