SOLUTION: if the sum of nine angles of a decagon is 1350 degrees, how large is theh tenth angle?

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: if the sum of nine angles of a decagon is 1350 degrees, how large is theh tenth angle?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 256207: if the sum of nine angles of a decagon is 1350 degrees, how large is theh tenth angle?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The sum of the interior angles of any n-gon is given by:

degrees.

Substitute 10 for n, do the arithmetic, then subtract 1350, the sum of 9 of the angles, from the sum of all ten to get the measure of the last one.

John