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11. The perimeter of a square field is 240 m. What is the length of its sides? If it is to be fenced with a barbed wire going 4 times around it, what length of barbed wire would be needed? Ifthe cost of barbed wire is * 150 per metre, what would be the cost involved?​

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-STEP EXPLANATION:SORRY for this it is not SOLVING to me



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