Answer :
Answer:
Circle's area = 28,26 km
Formula = π r²
Step-by-step explanation:
[tex]circle's \: \: area = \pi \: {r}^{2} \\ circle's \: \: area = 3,14 \times {3}^{2} \\ circle's \: \: area = 28,26 \: km \\ circle's \: \: area = 28.260 \: m[/tex]