A. Identify what polygons are the following figures based on the number of their sides. Write the answers in your notebook. 1. 2. 3. A B. Regular and Irregular Polygons A regular polygon is a polygon with all sides and all angles congruent. This means that all the sides of a regular polygon have the same length and all their angles have the same measure. For example, hexagon ABCDEF has 3 centimeters in all sides, and all angles have the same measure. It is an example of a regular hexagon. It has 6 congruent sides and 6 congruent angles. F с E M 5 cm 5 cm Q N On the other hand, an irregular polygon is a polygon with sides and angles that are not congruent. As shown in 3 cm the figure, pentagon MNOPQ is an irregular pentagon. The measure of its sides and angles are not congruent. 3 cm Р 11 cm o