i need help finding the arc with the radius of 11 and the angle of 315

i need help finding the arc

$$\rm{circumference~circle~}=2\cdot\pi \cdot r\\\\ \begin{array}{rcl} \rm{arc~} &=& 2\cdot\pi \cdot r \cdot \dfrac{\varphi\ensurement{^{\circ}}} {360\ensurement{^{\circ}}}\\\\ \rm{arc~} &=& 2\cdot\pi \cdot r \cdot \dfrac{315\ensurement{^{\circ}}} {360\ensurement{^{\circ}}}\\\\ \rm{arc~} &=& r \underbrace{ \cdot 315\ensurement{^{\circ}} \cdot \dfrac{2\cdot\pi~\rm{rad}} {360\ensurement{^{\circ}}} }_{=\varphi_\rm{rad}} } \qquad | \qquad \rm{arc~}=r\cdot \varphi_\rm{rad}\\\\ \rm{arc~} &=& 11 \cdot 315 \ensurement{^{\circ}}\cdot \dfrac{\pi} {180\ensurement{^{\circ}}}\\\\ \rm{arc~} &=& 11 \cdot 1.75 \cdot \pi\\\\ \rm{arc~} &=& 60.4756585816\\\\ \end{array}$$