SOLUTION: if the sum of the measures of the interior angles of a polygon is 1980 degrees, how many sides does it have? How do I do this? Is there a formula? HELP, THANKS

Algebra ->  Polygons -> SOLUTION: if the sum of the measures of the interior angles of a polygon is 1980 degrees, how many sides does it have? How do I do this? Is there a formula? HELP, THANKS      Log On


   

Question 1015374: if the sum of the measures of the interior angles of a polygon is 1980 degrees, how many sides does it have?
How do I do this? Is there a formula? HELP, THANKS
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
Yes, there is a formula:



matrix%281%2C3%2C1980%2C%22%22=%22%22%2C%28n-2%29%2A%22180%B0%22%29

You finish.  Solve that for n

Edwin