The radii of two circle are 12 and 16 respectively. Find the radius of a circle whose area is equal to the sum of the area of the two circle?
Hello
Check this question - https://www.teachoo.com/1846/546/Ex-12.1--2---The-radii-are-8-cm--6-cm.-Find-radius-of-circle/category/Ex-12.1/
Very similar