Question

the radius of a circular field is 20.3 m what will be the cost of fencing it with wire at the rate rs 2.75 per metre

Answer 1

The radius of a circular field is 20.3 m, the cost of fencing it with wire at the rate rs 2.75 per metre will be 350.758

According to question,

Total cost = 2.75 * Circumference of the given field

Therefore, Circumference = 2πr

           = 2*π * 20.3  metre

           = 127.548 metre

So total cost of fencing it with wire at the rate of Rs2.75 per metre would be,

        = 2.75 X 127.548

        =350.758