Surface area formulas

1. The base and top

The area of the base is found by doing pi (3.14159...)
x radius squared (or to the second powered). Multiply the outcome by 2 because the base has the same area as the top.

2. The curved face

To find the area of the cylinder's side or curved face, you must first find the base's circumference by doing pi x the diameter. Multiply this by the height of the cylinder. Now you have the area of the curved face.

3. Add 'em up

Add the area of the curved face to the areas of the base and top.
Example:
Diameter=14 units
Height=7 units
(pi x7squared)x2= 153.93804
(pi x14) x7=307.876
153.938+307.876=
461.814
461.814=surface area