The l and b of a play ground are 80 meter and 35 meter respectively (a) find the cost of fencing it at rupes 4.50 par squre meter.
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l=80m, b= 35m
perimeter = 21+2b = 230
assume fencing rate is ₹4.50/m
so total cost = 230*4.5 = ₹1035
perimeter = 21+2b = 230
assume fencing rate is ₹4.50/m
so total cost = 230*4.5 = ₹1035
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