Geometry

# Is an Octagon a convex polygon?

###### Wiki User

###### May 22, 2015 12:01PM

It can be but it need not be.

## Related Questions

###### Asked in Geometry

### What is a convex octagon?

###### Asked in Math and Arithmetic, Geometry

### How do you determine whether a polygon is convex or non-convex?

No interior angle of a convex polygon can exceed 180 degrees. A
non-convex polygon has at least one reflex angle (> 180
degrees).
Alternatively, a polygon is convex if, given any two points on
or inside the polygon, the straight line joining the two points
must lie wholly on or inside the polygon. In a non-convex polygon,
it is possible to find a pair of points such that the straight line
joining them lies outside the polygon for at least some of its
length.