The area of one circle is 4 times as large as a smaller circle with a radius of 3 inches. the radius of the larger circle is

The area of small circle= π(3^2)=9π
As the area of other circle is four times greater than small one 
So the area of larger circle will be= 4(9π)=36π
So the radius will be
area=π r^2
 36π=π(r^2)
r^2=36
√r^2=√36
r=6 inchs
ANSWER IS THAT THE RADIUSOF LARGER CIRCLE WILL BE
6 INCHES