Wire cut into a square and a circle so that the total area is least

1. A.
   $2x=(\pi+4)r$
2. B.
   $(4-\pi)x=\pi r$
3. C.
   $x=2r$
4. D.
   $2x=r$

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1. A.
   $\frac{8}{\pi + 4}$
2. B.
   $\frac{64}{\pi + 4}$
3. C.
   $\frac{2}{\pi + 4}$
4. D.
   $\frac{16}{\pi + 4}$

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1. A.
   $\dfrac{160}{\pi + 4}, \dfrac{40\pi}{\pi + 4}$
2. B.
   $\dfrac{\pi + 4}{160}, \dfrac{40\pi}{\pi + 4}$
3. C.
   $\dfrac{160}{\pi + 4}, \dfrac{\pi + 4}{40\pi}$
4. D.
   $30, 10$

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