angular momentum - kepler's law

At the entry of a satellite into a circular orbit at a distance 300 km from the earth the direction of its velocity deviates from the intended direction by 1 degree towards the earth. How is the perigee changed?

I'm pretty much completely lost on this one. I know the change is in angular momentum. Can anyone give me a push in the right direction?

Thanks.

Re: angular momentum - kepler's law

Disregard. I was able to solve using basic trigonometry and got the correct answer.

Thanks.