## Precalculus (6th Edition) Blitzer

$\frac{63\pi}{4}$ yards $\approx$ 49.48 yards
θ =315 ° = $\frac{315 °\pi}{180 °}$ As we know, s = θr. So, s = 9 x $\frac{315 °\pi}{180 °}$ =$\frac{63\pi}{4}$ yards $\approx$ 49.48 yards.