A hexagonal pyramid is a three-dimensional pyramid that has a hexagonal base along with sides or faces in the shape of isosceles triangles that meet at the apex or the top of the pyramid. A hexagonal pyramid is one of the different types of pyramids, which are classified based on the shape of the base of a pyramid. It is also known as a heptahedron since a hexagonal pyramid consists of 7 faces, which include a hexagonal base and 6 isosceles triangular lateral faces.