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Question

Saima wants to put a lace on the edge of a circular table cover of diameter 1.5 m. Find the length of the lace required and also find its cost if one meter of the lace costs 15 (Take π=3.14)

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Solution

Diameter of the circular table cover = 1.5 m
Radius of the circular table cover = 1.52 m
Circumference of circular table cover = 2πr
=2×3.14×1.52=4.71 m
Therefore, the length of required lace is 4.71 m
Now the cost of 1 m lace = Rs. 15
Then the cost of 4.71 m lace = 15×4.71=Rs.70.65
Hence, the cost of 4.71 m lace is 70.65

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