Question

What is the measure of each interior angle of a regular octagon

Answer 1

So the sum of all the interior angles of a octagon is 1080. A octagon has 8 sides/angles. So you have to divide the sum of all the angles by the number of sides/angles. Which is 1080 divided by 8. The answer to 1080 divided by 8 is 135.

So the answer is 135.
Hope this helps.

Answer 2

Well, first there are eight sides and the total sum of the interior angles together are 1080.... So each angle is an obtuse angle measuring exactly 135°