Question 392473
The formula for each interior angle of a regular n-gon is {{{y = (180(n-2))/n}}} (simply because there are n-2 non-overlapping triangles that can be drawn within the n-gon, divide by n to obtain each measure).


If n is 5, replace n = 5 to obtain the interior angle measure: {{{y = (180(3))/5 = 108}}} (degrees)