[tex]\textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=11.5 \end{cases}\implies C=2\pi (11.5)\implies C=23\pi[/tex]
now, that's the circumference, or namely another way to say that's the car's arc length or a revolution.
now, how many times does 23π go into 13200? [tex]\cfrac{13200}{23\pi }~~ \approx ~~ \stackrel{revolutions}{182.68}[/tex]
