Answer
$9\pi \approx28.274\ ft^2$.
$6\pi\approx18.850\ ft$.
Work Step by Step
Step 1. Given the diameter $d=6\ ft$, we have the radius $r=3\ ft$.
Step 2. We can find the area of the circle $A=\pi r^2=9\pi \approx28.274\ ft^2$.
Step 3. We can find the circumference of the circle $C=\pi d=6\pi\approx18.850\ ft$.
