Question

a wire is in the form of a square of side of 27.5cm it is straightened and bent into the shape of a circle find the area of the circle

Answer 1

given
side of square=27.5
therefore perimeter =4×s
=4×27.5 =110
therefore perimeter of circle=2×22/7×r
110=44/7×r
110×7/44=r
17.5=r
hence area of circle=22/7×(r)^2
22/7 ×306.25
=962.5