A square piece of ground is 75 cm long find the cost of eracting fence round it at ₹4 per metre
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here side(l)= 75 cm
perimeter of square= 4×l= 4×75=300 cm
1 m =Rs 4
so 300 cm= 4× 300= Rs 1200
perimeter of square= 4×l= 4×75=300 cm
1 m =Rs 4
so 300 cm= 4× 300= Rs 1200
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