Polygon and Polyhedron Vocabulary

The point or corner at which two or more edges meet

The flat surface of a 3D shape

The line joining two vertices (2D) or where two faces meet (3D)

The name of a 9 sided polygon

One vertex (single) . Many _________ (plural)

The difference between a prism and a pyramid is

• A prism has parallelograms for sides. A pyramid has an apex.

• A pyramid has more than 3 sides. A prism has rectangular sides.

• A pyramid has a polygon base. A prism has identical polygons on either end (front and back).

• A prism has many edges. A pyramid has only 4 vertices.

A pyramid has a top point called a(n) _______

• peak

• apex

• middle

• mountain

A prism has sides which are _________

• parallelograms

• squares

• pentagons

• always rectangles

A pyramid has only one base.

• True

• False

A vertex is _______

• a corner of a polygon or polyhedron

• a point on a line

• the highest point of a pyramid

• a line between faces