Which polygon has nine sides?
ANonagon
BDecagon
CHeptagon
DOctagon
Answer & Solution
Correct answer: A. Nonagon
1. Octagon has 8 sides, heptagon has 7 and decagon has 10.
2. A nine-sided polygon is a nonagon.
3. It is also called an enneagon.
_Source: Wikipedia, Nonagon (CC BY-SA 4.0), Nonagon_
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