SOLUTION: OK SO the question is ... FInd the measure of one of the exterior angles of a regular polygon with nine sides. What I tried was S=180(n-2) The steps I took was... S=180(7) I k

Algebra ->  Algebra  -> Polygons -> SOLUTION: OK SO the question is ... FInd the measure of one of the exterior angles of a regular polygon with nine sides. What I tried was S=180(n-2) The steps I took was... S=180(7) I k      Log On

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Question 191612: OK SO the question is ... FInd the measure of one of the exterior angles of a regular polygon with nine sides.
What I tried was S=180(n-2) The steps I took was... S=180(7)
I kept getting 1260. But that is not an anwser. So what is the set up to use, Both to find number of sides and the measure of certain number of sides??
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
exterior angles always add to 360 degrees...your are using an interior angle formula
:
360/9=40 degrees