# Exploring Types of Angles

Topic:
Angles

## Acute, Obtuse, and Right Angles

Write your answers to these questions in your math notebook. 1. Click the blue dot and move it until the angle measurement reads 90 degrees. What is this type of angle called? 2. Slide the blue dot to the right. What do you notice about the angle measurements as you move it to the right? 3. Slide the blue dot to the left. What do you notice about the angle measurements as you move it to the left? 4. When does the label change from "obtuse" to "acute"? 5. Explore more angles by sliding the blue dot, and then write your own definition for an obtuse angle, a right angle, and an acute angle. 6. Give an example measurement of an acute angle. Explain why it is acute, not obtuse. 7. Give an example measurement of an obtuse angle. Explain why it is obtuse, not acute. 8. What is the largest whole-number measurement an acute angle could have? 9. What is the smallest whole-number measurement an obtuse angle could have? 10. What makes a right angle unique?