Lesson 18 — Angles



These are examples of angles you will work with in this lesson.
Image courtesy of www.imagesgoogle.com 

In this lesson, you will:

  • learn about the different types of angles
  • learn how to measure and draw angles up to 180 degrees


Key Terms for this lesson:

  • acute angle
  • obtuse angle
  • right angle
  • straight angle
  • ray
  • vertex