Answer:
5.3 or (4217pi/2500)
Explanation:
Create a right triangle with the coordinates provided.
We can ignore the negative sign and create the equation

x = 33.624
We then add 270 and x together because the coordinates are in the 4th quadrant.
angle = 303.624
To convert to radians, we multiply this number by pi/180
5.3 radians