A pyramid is made up of a polygonal base face and triangular faces that meet at a point called the apex. A pyramid is named by the shape of its ‘base’.

The most common pyramids are square-based, rectangular-based and triangular-based pyramids. The surface area of a pyramid can be calculated by adding the area of the base to the sum of the areas ...

For a pyramid to look like a pyramid, each of the four triangular-shaped sides must slope up and towards each other at the same angle so that they meet at a point at the top.