Question

Find the radii whose area is 22

Answer 1

for a circle it is
pi r^2 = 22
22/7r^2= 22
r^2 = 7
r= root 7

Answer 2

area = πr²

22 = 22/7 x r²

r²= 7

r = √7

here r = radius

simply by just putting the value in the formula to calculate the area of circle u can get your answer as I did above.