Answer:
4/5
Step-by-step explanation:
C, B, G common vortex ( B) and common side (C, G)
Point A is on the 4th circle from the center, each circle has a radius of 1, so the 4th circle has a radius of 4. The point is also on the angle labeled 5PI/6.
The polar coordinate would be (4, 5PI/6)
Point C, you are given (-3,pi/3)
Because the radius is positive find the 3rd circle, which would be r = 3, Then find where PI/3 is on the circle and find the value opposite that which is 4pi/3
Well it depends on what the model is but if it's an IRA or whatever so if you make your own model that's easy