How do i find the radius of a sphere wen surface area is given?
Surface area of a sphere is: A=4. Pi. r^2
Use my example to find the radius.If area was 100=4 X 3.141592 X r^2,
100=12.566368 X r^2
r^2=100 / 12.566368
r^2=7.957749
r=Square root of (7.957749)=2.820948. And there you have it.
