Part C The answer is zero. But I am not sure what I am missing. I am using a Pentagon to do the analysis (I don't feel like drawing a 13-sided object). It seems like I need to know a little more about the geometry of a Pentagon. How is the center of an odd-number-of-sides polygon defined? I am assuming that in is not equidistant from ALL of the vertices? Otherwise i don't see how it could be zero. Am I making this more difficult than it is? Am I just supposed to look up the formula(s) for the center of a 13-sided polygon?