Answer:
This is the correct answer and here is why
Step-by-step explanation:
An octagon had 8 Sides (The sides of the polygon is N)
You use the formula:
I=(n *number of sides* - 2) = 180*
I=(8-2)180
I=(6)180
6x180= 1080
N=1080
Therefore the Sum of the measures of the Interior angles of an octagon is: 1080