Question

the area of a circular field is 13.86sq .find the circumference of the field

Answer 1

Find the radius of the circle.
[tex] \pi r^2 = 13.86sq [/tex]
r = 2.1
cirmcumference = 2 * 22/7 * 2.1 = 13.2

Answer 2

pie r sq=13.86
r sq=13.86*7/22
r sq=4.41
r=2.1

2 pie r=circumference
2*22/7*2.1=44/7*2.1
=13.2cm