What is a three dimensional pyramid called?

A three-dimensional pyramid is commonly referred to simply as a "pyramid." It is a geometric shape with a polygonal base and triangular faces that converge at a single point known as the apex. The most well-known type is the square pyramid, which has a square base and four triangular faces. Pyramids can vary in the shape of their bases, leading to different classifications such as triangular, rectangular, or pentagonal pyramids.