A video in khan academy beautifully derived a formula for this. It was finally nRt*ln(final volume/initial volume)... That's what I remember. So my final answer will be in terms of nrt. Is that okay?

A bigger problem is, do I take this p(t) in degrees or radian? I mean when I calculate p at a certain t, should I put my calc in degrees or radians? For this case I am assuming radians. Because for degrees there is barely any change in pressure.

But what do I do for all other such cases in physics?

Attached Images

 

Radians are the "natural" measure of an angle, so in general angles in physics problem are in radians unless told otherwise.

Thanks