Understand how to find the slope of parallel and perpendicular lines.

Angles, parallel lines, and transversals are explained through examples and a video lesson. [1:01]

Understand the step-by-step processes used to create accurate geometric figures.

You can assess your knowledge of the various parts of angles and lines at this web site. You respond to a series of questions. A running total is visible showing the number of correct responses you have as you work your way through the...