If the perimeter of a circle is half to that of a square, then the ratio of the area of the circle to the area of the square is
If the perimeter of a circle is half to that of a square, then the ratio of the area of the circle to the area of the square is
(a) 22 : 7
(b) 11 : 7
(c) 7 : 11
(d) 7 : 22
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