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The sum of the perimeters of a circle and a square is {k}, whe
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The sum of the perimeters of a circle and a square is , where is some constant. Prove that the sum of their areas is least when the side of the square is double the radius of the circle.

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The sum of the perimeters of a circle and a square is , where is some constant. Prove that the sum of their areas is least when the side of the square is double the radius of the circle.
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Question Text
The sum of the perimeters of a circle and a square is , where is some constant. Prove that the sum of their areas is least when the side of the square is double the radius of the circle.