Answer:
7π/3 = 420°
Explanation:
The angle is made up of a full circle around the origin.
A full circle has a central angle of 2π rad measure.
Then in Quadrant IV, the angle is another π/2 - π/6 radians.
2π + π/2 - π/6 = 12π/6 + 3π/6 - π/6 = 14π/6 = 7π/3