CAT Exam Category

a wire of length 44cm is bent to form a circle and then rebent to form a square.he difference of the enclosed area

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circle perimeter = 2*pi*r =44
r= 44* 7/22 *1/2 = 7 cm
area = pi*r^2 = 22*7=154 cm^2
perimeter of square = 4a =44 =a=11
area of square = 11^2 =121 cm^2
difference is = 154-121 =33 cm^2
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