# Which of the following is NOT a regular polygon?

Which of the following is NOT a regular polygon?
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Szeteib
Make a table of values, plot the points, and connect with a staight line as shown: A regular polygon is both equilateral (having equal sides) and equiangular (having equal angles). As indicated by the markings, figure B has two side different side lengths because of different tick marks.
Hence, choice B is not a regular polygon.