A 20 meter long metal wire is divided into two pieces with a clip. One piece is shaped into a circle with radius r while the other is shaped into a square. What is the total area of the circle and square, expressed in terms of r?
πr2+ `(pi^2 r^2)/4`
πr2 + (20 - 2πr)2
πr2 + 10
πr2 + (5 – `(pi r)/2` ) 2
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