1.   What is the name of a polygon that has five sides?
    A. decagon B. nonagon
    C. heptagon D. pentagon

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

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

  4.   Choose the best description for the picture.
    A. regular octagon B. octagon
    C. regular hexagon D. hexagon

  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. 90° B. 150°
    C. 147° D. 144°

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