B. Classify each polygon as regular or irregular

1. Regular

2. Irregular

3. Regular

C. What angle corresponds with A

∠ACB

What is an angle?

In geometry, an angle can be defined as the figure formed by two rays meeting at a common end point. An angle is represented by the symbol ∠. Here, the angle below is ∠AOB. Angles are measured in degrees, using a protractor.