One side is 5"

One side is 4"

One side is 3"

The phase angle (Theta) formula is:

Tan-1 opposite over adjacent

equals tan-1 4/3

How did they get the phase angle of 53.13

I am putting it in the calculator wrong.

I am trying to get the phase of 6280(XL) over 5000(R)

Is it tan-1 6280/5000

The answer key says it's .898

???

I seem to be missing something.