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’. A pyramid with a triangular base is a ...

Sometimes they have a triangular shaped base and sometimes they have square shaped bases. Everyday things that have the shape of a pyramid include rooftops, buildings and paperweights.

This square-based pyramid, like most pyramids, has been thought to have just four triangular faces. However, in a surprising turn, recent studies have shown that the one of the Seven Wonders of ...