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The figure shows a circle, of radius r units, with an inscribed square within it and a circumscribed square about it. The area of the circle, in square units, can be approximated by finding the average of the areas of the two squares. Which function of r represents that approximation?

The Figure Shows A Circle Of Radius R Units With An Inscribed Square Within It And A Circumscribed Square About It The Area Of The Circle In Square Units Can Be class=