X=-20
-20+18=2
The number that is bigger is negative so therefore the answer would be negative
Answer:


Step-by-step explanation:

A = <span>π r^2
r^2 = A/</span><span>π
r^2 = 530.93 / 3.14
r^2 = 169.08
r = 13
C = 2 </span><span>π r
C = 2 (3.14)(13)
C = 81.64
answer
81.64 m</span>