What is an angle bisector and how do you make one?

The angle bisector is a ray or line segment that bisects the angle, creating two congruent angles. To construct an angle bisector you need a compass and straightedge. Bisectors are very important in identifying corresponding parts of similar triangles and in solving proofs.

Here's a helpful website recommended by my daughter's math teacher. It has a bunch of math video lessons with concept explanations and sample problems. The best part is, it is free. Hope this will help you too.

http://www.brightstorm.com/d/math/s/geometry/u/constructions/t/constructing-an-angle-bisector