1.   The polygon shown is
   
    A. regular B. a hexagon
    C. an octagon D. concave
    Hint

  2.   What is the measure of an interior angle of a regular 9-gon?
    A. 135 B. 140
    C. 147 D. 144
    Hint

  3.   Find the value of x.
   
    A. 12.75 B. 46.5
    C. 35.25 D. 24
    Hint

  4.   Find the sum of the measures of the interior angles of a 28-gon.
    A. 4680 B. 180
    C. 5040 D. 167
    Hint

  5.   Find the measure of .
   
    A. 140° B. 29°
    C. 75° D. 110°
    Hint