The radius is found from
... A = πr²
... r = √(A/π) = √(154/π) m ≈ 7.00 m
The circumference is then
... C = 2πr = 2π(7.00 m) ≈ 43.99 m
The circumference is about 44.0 m.
9.4m questions
12.2m answers