Question

The area of a circular field is 2462 m². Find the cost of fencing it at the rate of Rs. 6.50 per metre.​

Answer 1

Answer:

area of circle=πr²

22/7×r²=2462

r²=784

r=28

cost of fencing = 2πr×6.5=2×22/7×28×6.5=Rs1144

Answer 2

Hi mate. This is ur answer-

Area of feild= 2462 m2

Formula of Area of a circle= πr2

22/7 × R = 2462

R = 2462 ÷ 22/7

R = 2462 × 7/22

R = 783.36/2

R = 391.68

Perimeter of Circle = 2πR

= 2 × 22/7 × 391.68

=2461.98

Therefore, cost of fencing= 2461.98×6.50

=16,002.87 Rupees.

Hope this helps..