# What is the formula for the surface area of a cylinder?

The surface area of any 3-d object is the total area of all of its surfaces.

## Answer: The surface area of a cylinder is 2πr(r+h).

Let's understand the formula for the surface area of a cylinder in detail.

**Explanation:**

We know that a cylinder has a curved surface as its main body and two circular faces.

The surface area of a cylinder is expressed as the total area of all of its surfaces.

Therefore, the surface area of a cylinder = area of two circular faces + area of the curved surface

= 2 × πr^{2} + 2πrh

=2πr(r+h)

where, the base radius is ‘r’, and height is ‘h’