Document Reference: TN201309069 - Rev: 4.12 - Last Update: 26-03-2014 11:50 GMT - Downloaded: 07-Dec-2023 11:01 GMT
A sphere is perfectly round, composed with set of points that are all the same distance from the centre of the sphere. A ball is an example of a sphere.
The volume of a sphere is 2/3 that of a circumscribed cylinder (Archimedes).
Enclosed Volume of a Sphere
Formula
| Volume (V) | = | 4 | × | π | × | radius cubed |
| 3 |
| V | = | 4 | π r3 |
| 3 |
The radius r is the radius of the cross section of the sphere.
Surface Area of a Sphere
A sphere has only one single curved surface area (face). A sphere has no edges.
Formula
| Surface Area (A) | = | 4 | × | π | × | radius squared |
| A | = | 4 π r2 |