please give me answer
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perimeter of the lace=2πr
=2π(d/2)
π×d=22/7×2.1=6.59m
cost of 1 m of lace =Rs 18
Total cost of lace=18×6.59
=Rs 118.62
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Hope it helps
Length of lace =2πr = πd
=22/7×2.1=6.6m
Cost of lace required=18×6.6
=Rs118.8
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