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Mathematics 9 Online
OpenStudy (anonymous):

MEDAL TO CORRECT ANSWER WITH EXPLANATION

OpenStudy (anonymous):

OpenStudy (tkhunny):

Definitely a polygon. Throw out #3 Definitely a nonagon. Count the sides. Do you get nine? Throw out #2 Definitely not convex. Do you know why? Throw out #1 Well, that doesn't leave much.

OpenStudy (anonymous):

thank you very much !

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