A wire is in the form of a circle of radius 42cm it is bent into a square find the side of the square. Take pi= 22 by 7.
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circumference of circle=2pi×r
=2×22/7×42
=264
perimeter of square =4l
264=4l.........length of wire is 264
l=264/4
=66
thus, side of square id 66
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