Question

a coper wire when bent in the form of a square enclosed an area of 121cmsquare. lf the same wire is bent in to the form of a circle, then find the area of the circle.

Answer 1

side *side= area of square
so
s=_/121
side=11cm
NOW,
perimeter of square will be 4*s
that is 4*11=44cm.
hence we now know the perimeter of that circle
perimeter of circle =2πr
2πr=44
AFTER solving this you will get the radius
which is>>>> r=7
Now area of circle is πr²
area =22/7*7*7
area=154cm².<<<<<<<<- - -ANSWER
#THANK YOÜ

Answer 2

when bent,
area of square = 121 cmsquare
I.e., if one side of a square is 'a'
a*a=121
i.e., a=11 cms

since the wire is bent,
length of wire = perimeter of the square
length = 4×11 cms
I.e, length of wire is 44 cms

when formed a circle from the same wire,

circumference of the circle = length of wire
i.e., 2πr = 44 cms
or r=22/π

therefore
area of circle = π(r*r)
= π(22/π)*(22/π)
= 44/π cmsquare