Using the formula for the area of a circle:
A = πr^2
we have:
38.5 = πr^2
Solving for r, we get:
r^2 = 38.5/π
r^2 ≈ 12.25
r ≈ √12.25
r ≈ 3.5
So the radius of the circle is approximately 3.5 meters.
Using the formula for the circumference of a circle:
C = 2πr
we have:
C = 2π(3.5)
C ≈ 22
So the circumference of the circle is approximately 22 meters.