
A pyramid is any threedimensional polyhedron where the faces other than the base are triangular and meet at one point, called the vertex or apex.
The base of a pyramid can be any polygon: a square, or a triangle, leading to four or three nonbase faces. Kinds of pyramids:
The base is a heptagon (7 sides) Answer: heptagonal pyramid
Directions: Answer the following questions. Also draw at least five examples of pyramids on your own. 