Question

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

A. 135
B. 1080
C. 147
D. 124

Answer 1

135

Explanation:

360/number of sides

360/8=45

180-45=135

135 is the answer

Answer 2

All sides are the same length (congruent) and all interior angles are the same size (congruent). To find the measure of the angles, we know that the sum of all the angles is 1080 degrees (from above)... And there are eight angles... So, the measure of the interior angle of a regular octagon is 135 degrees.