Homework Help: Phase Angles

1. The problem statement, all variables and given/known data
Im an apprentice electrition and my 2nd year principles exam is coming up. the question i ask is about Phase angles. It asks me to represent my data using a phase angle but in the book im using there are no equations to show me how to get my phase angle. im working on my inductance. it shows how much the current is leading the voltage. its all about being 'out of phase'

2. Relevant equations
the inductance equation is
XL=2pie(3.142)fL
XL - inductive reactance (ohms)
F - supply frequency (hertz)
L - Circuit inductance (henrys)


3. The attempt at a solution
i have attempted on the inductance equations but have not go any further. please help. im very confused