The rule for the area of a polygon is as follows:
Area of a Polygon = Apothem x Perimeter ÷ 2
So, add all the of the outside measurements together to find the Perimeter but I don't know where the Apothem in the polygons are.
I hope this gives you some sort of a lead. :)
This is what I think your looking for
Domain:
{-4, -2, -1 , 1, 4}
Hope it helps
