1.   Which figure is not a polygon?
    A. B.
    C. D.
    Hint

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

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

  4.   Which name best describes the type of triangle shown?
   
    A. scalene B. isosceles
    C. obtuse D. equilateral
    Hint

  5.   Which name best describes the type of triangle shown?
   
    A. scalene B. isosceles
    C. equilateral D. obtuse
    Hint



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