1.   The polygon shown is_______.
   
    A. a hexagon B. concave
    C. a quadrilateral D. regular
    Hint

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

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

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

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



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