The radius of a circle is 5.4 in. Find the circumference to the nearest tenthto the nearest tenth.
1 answer
The formula for the circumference of a circle is given by $C = 2\pi r$, where $r$ is the radius of the circle. Plugging in the given radius of $5.4$ inches gives $C = 2\pi(5.4) = 10.8\pi \approx \boxed{33.9}$ inches.