Hi need help with quadrant and angles Plz help

Question

Give the quadrant the following angles would be on a coordinate plane

1. -120°
2. 3pi/4
3. -pi/6
4. 16pi/3

Plz Help I have a quiz coming up and my teacher didn't even teach us especially with the pi

Thank You

Answer 1

Hope this helps!!

Answer 2

π/2^r = 90º

π^r = 180°

3π/2 = 270º

2π^r = 360º