Answer
The measure of one interior angle of an octagon is 135 degrees
Step-by-step explanation:
The sides of an octagon = 8 sides
The sum of an Interior angle of a polygon = (n - 2) x 180
n = 8
Sum of an interior angle = (8 - 2) x 180
Sum of an interior angle = 6 x 180
Sum of an interor angle = 1080
The measure of one interior angle of an octagon= 1080 / 8
the measure of one interior angle of an octagon = 135 degrees
Therefore, the measure of one interior angle of an octagon is 135 degrees