Volume of a sphere = 4/3*pi*radius3 and legend has it that Archimedes was having a bath when he discovered the formula
What's more important is knowing the formulae for a sphere which are:- Volume of a sphere = 4/3*pi*radius3 Surface area of a sphere = 4*pi*radius2
Actually, Galileo wasn't the person who discovered that the earth was a sphere.
The formula for the surface area of a sphere is: 4 pi r 2
Formula for calculating the area of sphere is : 4 * pi * r * r
Surface area of a sphere = 4πr2
He discovered that the earth was a sphere.
The common formula to find the volume of a sphere is 4/3 pi r3. pi = approx. 3.14 r = radius of sphere.
The answer depends on the radius of what! The formula for a circle or sphere are different. The answer also depends on what information is available about the circle or sphere.