Area of Regular Polygons

[devnanji]

how would i draw a figure for this? this is all the information my worksheet gave me:

O is the center of a regular n-sided polygon with consecutive vertices A and B

 

[stapel]

Where does the exercise say to try to draw a picture...?

I suspect you're probably supposed to use your knowledge and the formulas and relationships they've given you, and apply it to whatever is the task at hand. But without knowing what the exercise was, it's hard to say. :?