Given:
Radius of a cylinder = 2 cm
Height of the cylinder = 10 cm
To find:
The surface area of the cylinder.
Solution:
The total surface area of the cylinder is:

Where, r is the radius and h is the height of the cylinder.
Putting
and
in the above formula, we get




Therefore, the surface area of the cylinder is
square cm and its approximate value is 150.8 square cm.