## Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

$6 \text{ feet}$
$\because s = r \theta$ where $s$: Length of the arc of the circle $r$: Radius of the circle $\theta$: Central angle that subtends the arc (in radians) Use the formula above to obtain: $r = \dfrac{s}{\theta}$ $r= \dfrac{2}{\frac{1}{3}} = 2 \cdot 3 = \boxed{6 \text{ feet}}$