The base of a pyramid has n sides.Write an EXPRESSION for the number of faces of the pyramid.

Answer: The expression for number of faces of a pyramid =1+n
Step-by-step explanation:A Pyramid is a polyhedron or a three dimensional shape having a polygon base and all lateral faces are triangles .Its base describe the number of other faces of it.For example a triangular pyramid has a triangular base which gives rise to 3 lateral faces , and a rectangular pyramid has a rectangular base which give rise to 4 lateral faces and so on.....So the total number of faces in a pyramid = base + lateral facesIf a pyramid has n sides therefore it give rise to n lateral faces such thatThe total number of faces in a pyramid= 1+n .