Question

Surface area of sphere problems if radius increased 10 percent solution

Answer 1

Hi mate
Let Surface area = 4πr^2
Let radius = r

So, S.A. = 4πr^2 --------(1)

If radius increased 10 %
So, New radius = r + 10/100 = 1.1r <----

So, S.A. = 4π(1.1r)^2 = 4.84r^2 <=====

I hope this will help you.