What is a pyramid?

A pyramid is a geometric structure with a polygonal base and triangular sides that meet at a single point called the apex. The most well-known type is the square pyramid, which has a square base and four triangular faces. Pyramids are found both in mathematics and architecture. In ancient history, pyramids were used as monumental structures, most famously by the Egyptians as tombs for pharaohs and important individuals. These massive stone constructions symbolized strength, stability, and a connection to the divine. In geometry, pyramids are studied for their volume, surface area, and symmetry. Beyond their physical form, the term "pyramid" is also used metaphorically, such as in "pyramid schemes" or the "food pyramid," which visually represents hierarchies or layered systems. Whether in the deserts of Giza or in the classroom, pyramids remain fascinating symbols of both cultural achievement and mathematical precision.