1.   Choose the best description for the figure.
    A. not a polygon B. polygon
    C. regular polygon D. semicircle

  2.   Which of the following figures is not a hexagon?
    A. B.
    C. D.

  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. 135° B. 150°
    C. 1080° D. 1072°

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

  5.   The sum of the angle measures of a regular hendecagon (an 11-sided polygon) is 1620°. What is the measure of each of the angles of the hendecagon? Round your answer to the nearest whole degree.
    A. 147° B. 90°
    C. 150° D. 144°

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