Answer
$s=18\pi$ cm
Work Step by Step
Step 1: The formula to be used here is $s=rwt$.
Step 2: After substituting the values of $r$,$w$ and $t$ provided by the question into this formula, the equation becomes $s=6\times \frac{\pi}{3}\times9$
Step 3: Simplifying, $s=18\pi$ cm
