To convert from degrees to radians, always multiply the degree value by [tex] \frac{ \pi}{180} [/tex]. Therefore, we would do [tex]145* \frac{ \pi}{180} [/tex] which simplifies to [tex] \frac{145\pi}{180} [/tex] or [tex] \frac{29\pi}{36} [/tex] which is the final answer.
I hope this helps.