I forgot the equation on how to solve for the area of an octagon. No information is given except that the total perimeter is 72 inches since we know that each side is 9-inch long.(adsbygoogle = window.adsbygoogle || []).push({});

I looked up some stuff on the internet but it said we had to know the area from the middle of the shape to the outer edge (radius) in which I don't.

Edit: Not sure, but I think the answer is somewhere around 390.96 inches squared?

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# Homework Help: Area of Octagon

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