The perimeter of a circle and a square field are equal. What is the diameter of the circle field if the area of the square field is 484 sq.m?
Options:
A . 14m
B . 21m
C . 28m
D . None of these
Answer: Option C
Let the side of the square be a meter, then a2 =484 = a = 22m Perimeter of circle = perimeter of the square =(22 x4)m =88m =>2 x 22/7 x R =88 => R= (8 x 7/44) =14m Diameter =(14 x 2)m = 28 m
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