The sum of circumference of four small circle of equal radius is equal to the circumference of a bigger circle.Find the ratio of the area of the bigger circle to that of the smaller circle. Share with your friends Share 0 Neha Sethi answered this Dear student Let "r" be the radius of smaller circle and "R" be the radius of bigger circle.A.T.Q42πr=2πR ∵Circumference of circle=2πr⇒8πr=2πR⇒4r=R ...1Consider, πR2πr2 ∵Area of circle=πr2=π4r2πr2 using 1=16r2r2=16So, πR2:πr2=16:1 Regards 1 View Full Answer