1.   Which characteristic of a regular polygon is used to determine if it tessellates?
    A. The angle measure at each vertex is less than 180. B. The polygon has an even number of sides and angles.
    C. The sum of the measures of the angles is a multiple of 360. D. The angle measure at each vertex is a factor of 360.
    Hint

  2.   The sum of the measures of the angles of a regular octagon is 1080. What is the measure of each angle?
    A. 108° B. 144°
    C. 120 D. 135
    Hint

  3.   By drawing triangles, you can find that all of the measures of the angles in an octagon add up to 1080°. Find the measure of one angle in a regular octagon.
    A. 1072° B. 150°
    C. 135° D. 1080°
    Hint

  4.   Which of the following angle measures represents the angles of a regular polygon that can be used to make a tessellation?
    A. 60° B. 108°
    C. 144° D. 140°
    Hint

  5.   Which of the following angle measures represents the angles of a regular polygon that can be used to make a tessellation?
    A. 140° B. 108°
    C. 60° D. 144°
    Hint



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