Which is the sum of the interior angles of an octagon?

To find the sum of interior angles, subtract 2 by the number of sides and then multiply the difference by 180.

180 (8-2) = 180(6) = 1080.

1080 is the sum of the interior angles of an octagon

Hope this helps :)

The distance from point a to point c across the coordinate plane is aproxamatly 8.94 rounded to the nearest hundredth. you use a^2 + b^2 =c^2