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OpenStudy (anonymous):
What type of polygon is shown? Convex hendecagon Concave hendecagon Convex nonagon Concave nonagon
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OpenStudy (anonymous):
Directrix (directrix):
I know the hendecagon as the undecagon so I have learned something. If there are any internal angles greater than 180° then it is concave. (Think: concave has a "cave" in it). Hendecagon (or Undecagon), 11 sides. @NickBarri
OpenStudy (anonymous):
So its B @Directrix ?
Directrix (directrix):
That is what I got. @NickBarri
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