Move the blue point to change the angle. Watch the measurement and observe how the angle changes.
Task 1: Move the blue point until the angle is less than 90°. What type of angle did you create?
Task 2: Move the blue point until the angle measures exactly 90°. What type of angle is formed?
Task 3: Move the blue point until the angle is greater than 90° but less than 180°. What type of angle is formed?