# Parallelograms, and Rectangles: Finding Segments, and Angles.

### In the development of this lesson, you will be given many visual clues, and hints that will enable you to solve any problem that involves the properties of a parallelogram. Several of the explained examples take a great deal to show you the algebra that is involved, so that you don't get lost. This lesson is really on your side! Don't miss the opportunity to take advantage of interacting with the lesson solving the suggested problems using your stylus and the marker tools menu.

Lesson's Content

Lesson In PDF Format (no animations)

Lesson's Glossary

Angle
Geometric shape formed by two rays (initial and ending sides of the angle) that share a common endpoint called the vertex. You may name an angle using the vertex, or a point in each ray and the vertex label in the center.

Parallelogram
Any quadrilateral with two pairs of opposite sides parallel.

Polygon
It is a closed plane figure with a least three straight segments as sides.