Students read how to use the DEGREES() function to convert radians to degrees.

The conversion from rectangular to polar mode phase angle in radians is demonstrated in Excel.

The target audience of this learning object is trigonometry students who have already learned what a radian is and have already derived the key values of the coordinates associated with common radian units, but now need to practice finding those values on the unit circle. The student does not need to know the definition of the six trig functions to do this activity.