Answer:
C. in the rainy season
Explanation:
The roads are often impassable <u>in the rainy season</u>, but year-round air and ferry services are available.
Formula of circle:
C= 2πr
The radius is half of the diameter, so divide 9 by 2
18/2=9
Then plug in 9 as the radius in the formula.
C= 2π(9)
Using you calculator multiply 2 by the symbol "π" and 9
Exact Form is 18π
Decimal Form is 56.54866776...