1.   Estimate the measure of .
   
    A. 45° B. 60°
    C. 30° D. 90°
    Hint

  2.   Estimate the measure of the angle.
   
    A. 45° B. 30°
    C. 85° D. 120°
    Hint

  3.   Estimate the measure of the angle shown.
   
    A. 20° B.
    C. 75° D. 50°
    Hint

  4.   Which of the following angles represents a 45° angle?
    A. B.
    C. D.
    Hint

  5.   Identify the angle that measures 60°.
    A. B.
    C. D.
    Hint