Make geometric constructions.

How Do You Bisect a Segment by Constructing?
How Do You Construct a Line Parallel to Another Line Through a Given Point?

A compass is a very handy tool! In this tutorial, you'll see how to use a compass and straightedge to construct parallel lines!
How Do You Construct an Equilateral Triangle?

This tutorial shows you how to construct an equilateral triangle using a ruler and compass.
How Do You Construct a Perpendicular Bisector?

This tutorial shows you how to construct a perpendicular bisector using only a compass and a straightedge!
How Do You Construct a Square?

Did you know you don't need a ruler to construct a square? All you need is a compass and a straightedge! Watch this tutorial to see how it's done!