A circle’s radius is ${3\ {\rm m}}$.

1. This circle’s circumference, in terms of $\pi$, is . (Type pi for $\pi$.)
2. This circle’s circumference, rounded to the hundredth place, is .
3. This circle’s area, in terms of $\pi$, is . (Type pi for $\pi$.)
4. This circle’s area, rounded to the hundredth place, is .

(Use m for meters and m^2 for square meters.)