Question

The base of a pyramid has n sides
write an expression for the number of faces of the pyramid

Answer 1

n=5. its a pyramid. simple.

Answer 2

The answer to the problem is n+1.

A pyramid with a rectangular base has five faces. Since pyramids can have bases with any number of sides, the formula to calculate the number of faces is the number of sides of the shape that forms the base of the pyramid plus one.

Hope this helps.