Question 187776
You have the right idea, but you don't divide by "n". If you're looking for the sum of all of the angles of a heptagon (a regular polygon with 7 sides), then you use this formula


{{{S=180(n-2)}}}



{{{S=180(7-2)}}} Plug in {{{n=7}}} (since there are 7 sides)



{{{S=180(5)}}} Subtract



{{{S=900}}} Multiply



So if you add up all of the angles in a heptagon, then the result will be 900 degrees.