The total surface area of a pyramid includes the area of the base and the area of all the triangular faces that makes up the sides. The total surface area of a pyramid is the sum of the base area and the total area of all the triangular faces or total lateral surface area.

The formula for calculating the surface are of a pyramid is given below.

Total surface area of pyramid = base area + area of all triangular faces.

The following are the steps involved in calculating the surface area of a pyramid. 
Step-1: Note down the given values in the problem.
Step-2: Substitute the values in the corresponding formula.
Step-3: Get the answer for the surface area of a pyramid.