Question

The area of circular plot is 3850metre square find the radius of plot. Find the cost of fencing the plot at rupee 10 per metre

Answer 1

Answer:

Step-by-step explanation:

Area of circle = πr²

3850 = 22/7 * r²

r² = 3850*7/22 = 1225

r = 35 m

Perimeter of circle = 2πr

                               = 2 * 22/7*35 = 220 m

Cost of fencing = Perimeter * cost/metre

                          = 220 * 10 = Rs 2200