Volume of a sphere formula

Volume of Geometric Shapes
How to use the volume sphere formula in order to calculate the volume.

The formula for the volume of a sphere is 4/3 pi times the radius squared.
The radius of a sphere is half of the diameter.
In this example, I use 3.14 for pi which is the ratio of circumference to the diameter of a circle.

In example two you will use diameter to calculate the volume.

Check out: Surface Area Sphere Demo. I show why the surface area of a sphere is equal to a 4 to 1 ratio to the surface area of the hemisphere of the sphere
.https://www.youtube.com/watch?v=xDXdPB7SbMg