How many plane surfaces are on the pyramid?

A pyramid has a total of ( n + 1 ) plane surfaces, where ( n ) is the number of triangular faces. For example, a square pyramid has a square base (1 surface) and four triangular faces, resulting in a total of 5 plane surfaces. The specific number can vary depending on the shape of the base; for instance, a triangular pyramid (tetrahedron) has 4 surfaces in total.