What is the reference angle to 960 degrees?

the referance angle of 960 is -60degrees

u have to circle the graph twice so it would be 960-360-360=240 (the 360s are how many turns it takes because it only goes up to 360 degrees so you have to subtract 360 from 960 twice to get it a number that's not over 360). so u get 240 which is graph III the lower left corner and subtract it 180-240=-60.

the angle should be connected with the x-axis never the y-axis..so never subtract from 90 or 270.