Question

if radius of sphere is doubled then what will happen to surface area

Answer 1

Answer:

Step-by-step explanation:

Sphere=4pier^2

If r=2r

So

Surface = 4×pie×4r^2

Hope thse would helps u ✌

Answer 2

here
surface area of sphere =4πr^2
so if r =2r
then surface area of sphere =4π(2r) ^2
4π4r^2
now divide the two surface areas we get
the surface area of new sphere is 4 times greater than the old