1.   Classify the angle whose measure is 100°.
    A. obtuse B. acute
    C. right D. straight
    Hint

  2.   Classify the given angle.
   
    A. complementary B. right
    C. acute D. obtuse
    Hint

  3.   Find the sum of the measures of the interior angles of the polygon.
   
    A. 360° B. 540°
    C. 1080° D. 720°
    Hint

  4.   Find the 30° angle.
    A. B.
    C. D.
    Hint

  5.   Find the sum of the measures of the interior angles of this polygon.
   
    A. 360° B. 180°
    C. 900° D. 540°
    Hint