Respuesta :

The answer is 249 square units
mspeople
The answer is 64 units^2 because let the side length equal x.Then the area is x^2 and the perimeter is 4x. So we have the equation x^2=8x. Subtracting 8x form both sides and completing the square we get (x-4)^2=4 so x=8. That means the area is g4.

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