Question

Can someone please explain to me to find the volume of a sphere?

Answer 1

Try and see if you can recall formula for the volume

Answer 2

Just add up the surface areas as you increase the radius from 0 to R

Answer 3

consider a circle at some angle theta from vertical axis of sphere from the centre which is at a distance x from the center. now increase the angle del theta and consider another circle. these two circles form the disk. Now find the volume of this disk and then integrate it from theta=0 to theta= 180