A pentagonal pyramid has six different faces. A pentagonal pyramid consists of a base that is in the shape of a pentagon, with five triangular sides that meet at the apex.
In a regular pentagonal pyramid, the base is a regular pentagon, which means the sides and angles are all equal. This means that the five triangular faces are also identical to each other. The surface area can be calculated by determining the area of the pentagon as well as one of the triangles before multiplying it by five, and then adding them together. The volume can be calculated by multiplying the base area by the height and dividing by three.