An octagon is an eight-sided polygon. Therefore, an octagon has 8 sides.
To find the meassure of one interior angle, use the formula:
[tex]\frac{180(n-2)}{n}[/tex]Where, number of sides, n = 8
Thus, we have:
[tex]\begin{gathered} \frac{180(8-2)}{8} \\ \\ =\frac{180(6)}{8} \\ \\ =\frac{1080}{8}=135\degree \end{gathered}[/tex]Therefore, the measure of one interior angle in an octagon is = 135 degrees
ANSWER:
135 degrees
