Classifying Polygons by Perpendicular Sides

This video tutorial teaches how to classify polygons by observing perpendicular lines. It begins with an introduction to polygons and non-polygons, followed by an explanation of perpendicular lines and right angles. The tutorial then demonstrates how to classify polygons based on the number of perpendicular sides they have, using examples like pentagons, triangles, rectangles, and squares. Finally, it provides practical applications by identifying perpendicular sides in everyday objects.

Which shape has only one pair of perpendicular sides?

How many pairs of perpendicular sides are there in a rectangle?