Can someone please help me with this question;

Use Green's theorem o find the counterclockwise circulation and outward flux for the field F and curve C:

F=(arctan(y/x))i + ln(x^2+y^2)j

C: The boundary of the region defined by the polar coordinate inequalities

r between 1 and 2

theta between 0 and pi

I know the formulas for greens, I'm just confused how to handle this with the polar coordinate boundary.

Please help me out if you can!!!