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Srinivas Kadiyala
A thin piece of wire 40 meters long is cut into two pieces. One piece is used to form a circle with radius r, and the other is used to from a square. No wire is left over. Which of the following represents the total area, in square meter, of the circular and the square regions in terms of r?
(a)
(b)
(c)
(d)
(e)
(a)
(b)
(c)
(d)
(e)