Find the inside angle ( in degrees ) of a regular octagon.

Note that an octagon has $8$ sides .

The answer is 135.

**
This section requires Javascript.
**

You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.

The sum of the exterior angles of a convex polygon is 360 degrees. The interior and exterior angles are complements (i. e., add to 180 degrees). Therefore the answer, in this case, is $180-\frac{360}{8}\Rightarrow 135$ .