1.   The sum of the measures of the angles of a regular octagon is 1,080. Find the measure of one of its angles.
    A. 90° B. 120°
    C. 108° D. 135°
    Hint

  2.   Which of the following angle measures represent the angles of a regular polygon that can be used to make a tessellation?
    A. 144° B. 150°
    C. 135° D. 90°
    Hint

  3.   In the tessellation shown below, name the polygons and determine how many of each type are at each vertex.
   
    A. 2 octagons and 1 square B. 1 octagon and 4 squares
    C. 1 octagon and 2 squares D. 4 octagons and 1 square
    Hint

  4.   Which puzzle piece will tessellate?
    A. B.
    C. D.
    Hint

  5.   Which of the following angle measures represents the angles of a regular polygon that can be used to make a tessellation?
    A. 108° B. 140°
    C. 150° D. 120°
    Hint



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