Multiply by 180/π .
For example:
\(2\pi \text{ rad.}=2\pi \text{ rad.}\cdot\frac{180}{\pi}\text{ deg.}=360 \text{ deg.}\)
And:
\(4.25 \text{ rad.}=4.25 \text{ rad.}\cdot\frac{180}{\pi}\text{ deg.}\approx 243.507 \text{ deg.}\)
4.25 radians in degrees would be 243.507.
If you need help with an another question like this 1 radian is 57.29 degrees (rounded to 2 decimal places)