Planes and Polyhedrons (Jump to: Lecture | Video )

Plane

A Plane is a flat, two-dimensional surface that extends infinitely in all directions.

Figure 1.

Above is an example of a series of planes.

Polyhedron

Multiple planes can intersect to form three-dimensional Polyhedrons.

Figure 2.

A polyhedron has faces, edges, and vertices

Face

Any flat surface on a polyhedron.

Edge

Any point where two planes meet and intersect.

Vertex

Where thee or more planes meet and intersect.

Below are examples of some more common polyhedrons:

Figure 3.

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