Question

The area of two equally circles is 308 cm.find the perimeter of rectangle

Answer 1

let  1st cirlce's radius & 2st cirlce's radius be r1 & r2 respectively.
let length & breath of rect. be l & b respectively.
⇒ r1=l & r2=b
Gn:
area of circle 1 = area of circle 2 =308
π.r1^{2} =308
22/7*r1^2=308
r1^2=14*7=7*2*7
r1=7√2
ar(rectangle)=l*b=7√2*7√2=98