1.   Angles A and B are supplementary. If = 45°, find .
    A. 75° B. 45°
    C. 90° D. 135°
    Hint

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

  3.   Which angle has a measure of 10°?
    A. B.
    C. D.
    Hint

  4.   Which angle has a measure of 170°?
    A. B.
    C. D.
    Hint

  5.   Classify the pair of angles below.
   
    A. neither B. complementary
    C. supplementary D. both
    Hint

  6.   If is 72°, find the measure of its complement and its supplement.
    A. 8, 118 B. 8, 162
    C. 18, 118 D. 18, 108
    Hint

  7.   Solve (4x - 12) + 2x = 180.
    A. 28 B. 24
    C. 32 D. 26
    Hint

  8.   Solve 8n + 4n + 6n = 90.
    A. 5 B. 6
    C. 10 D. 9
    Hint

  9.   The angle below measures 140°. Classify the angle.
   
    A. obtuse B. right
    C. acute D. straight
    Hint

  10.   The angle below measures 40°. Classify the angle.
   
    A. straight B. right
    C. obtuse D. acute
    Hint



Glencoe
The McGraw-Hill Companies