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If a wire is bent in the form of square it encloses a area of 121 metre square. if same wire is bent in form of circle , find the area it encloses?



Area of square =121 m
one side of square = root  121  i.e 11m
hence circumfrence of circle =length of wire =4*11
                                                              = 44 m
hence 2 * pie * r= 44
2* (22/7)* r=44
r (44*7)/(2*22)=7 m

:. area of circle = pie*r*r =(22/7)*7*7=154m2
2 3 2
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