There are no parallel sides on a nonagon (nine-sided figure)... Regular shapes with an odd-number of sides have no parallel sides.
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In a regular nonagon no two sides are parallel.
A nonagon can have none, or anything up to four pairs of parallel sides. You can even have two quartets of parallel sides in you allow concave nonagons.
Up to four.
A Nonagon has 9 sides
a nonagon have 9 sides...