Question

if area of circle is 1381msquare so find the cost of wire to fence the area twice if the rate of wire is rs50/m​

Answer 1

Answer:

13194.5

Step-by-step explanation:

area of circle = 1381 m^2

formula for area of square = πr^2

hence : πr^2 = 1381

r = 21 m

fence = 2πr

fencing twice = 2*2πr

4πr = 263.89

cost for 1 m = ₹50

cost for 263.89 m

263.89*50 = ₹13194.5