What is the sum of the measures of the interior angles of an octagon?

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

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

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