To convert an angle measured in degrees to be measured in radians, you will need to multiple the angle in degrees by [tex]\frac{\pi}{180}[/tex].
For each of the angles in degrees you provided:
[tex]125 * \frac{\pi}{180}[/tex]
[tex]\frac{125\pi}{180}[/tex]
[tex]\frac{25\pi}{36}[/tex]
[tex]25 * \frac{\pi}{180}[/tex]
[tex]\frac{25\pi}{180}[/tex]
[tex]\frac{5\pi}{36}[/tex]
[tex]50 * \frac{\pi}{180}[/tex]
[tex]\frac{50\pi}{180}[/tex]
[tex]\frac{5\pi}{18}[/tex]
