Question

find the area of circle is 15400m metre square find its circumference​

Answer 1

Area = pi X R X R
15400 = 3.14 X R^2
R = sqrt(15400/3.14)
R = 4904.45 m

Circumference= 2 X pi X R
= 2 X 3.14 X 4904.45
= 30799.94 m

Answer 2

Answer:

circumference will be 440m

Step-by-step explanation:

if the area is 15400m²

let's consider the radius is r m²

then the area will be 22/7 r² m²

so

22/7r²= 15400

r²= 15400/(22/7)

r²= 4900

r= 70

so radius is 70m

the the circumference will be

2πr m=

=22/7×2×70m

=440m