Question

the area of a circle is equal to the area of a rectangle with sides 112m and 88m respectively find the circumference of the circle

Answer 1

Area of circle= area of rectangle
πr^2=l×b
22/7×r^2=112×88
r=56
then,circumfarance of circle=2πr
=×222/7 ×56=352 m

Answer 2

area of circle=area of rectangle
hence , area of rectangle = l×b
= 112×88 sq. m
= 9856 sq. m
area of circle= 22/7 × r×r
9856=22/7 ×r×r
9856×7/22= r × r
3136= r×r
56=r
circumfrence of the circle = 2×22/7×r
=2×22/7 × 56
= 352m
hence circumfrence of the circle is 352m