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The diameter of a circular field is 56 m. Find its circumference and cost of fencing it at the rate of ₹80 per m. (Take π =`22/7`)

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#### Solution

Given, Diameter of a circular field = 56 m

∴ Radius =`56/2` = 28 m

Circumference of the circle = 2πr

= `2xx22/7xx28` m

= 2 × 22 × 4 m

= 176 m

The cost of fencing 176 m is,

= 176 m × ₹80 per m

= ₹14,080

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