###### Asked in Math and ArithmeticAlgebraGeometry

Math and Arithmetic

Algebra

Geometry

# What is the total interior angles of an octagon?

## Answer

###### Wiki User

###### February 03, 2010 10:29PM

1080 degrees. To find the sum of the degrees of a polygon you must find the number of non-intercepting diagonals (or just subtract 2 from the number of sides, as in 8-2=60) and then multiply that by 180 (60*1080).

The sum of the *EXTERIOR* angles, however, will always
equal 360 degrees.