1.   Which pair of angles are complementary?
    A. B.
    C. D.
    Hint

  2.   Which pair of angles are supplementary?
    A. B.
    C. D.
    Hint

  3.   Classify the angle below.
   
    A. obtuse B. acute
    C. right D. straight
    Hint

  4.   Classify the angle below.
   
    A. acute B. obtuse
    C. straight D. right
    Hint

  5.   Angles A and B are complementary. If mA = 25°, what is mB?
    A. 90° B. 75°
    C. 65° D. 25°
    Hint



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