Vector Diagram Question: Finding Resultant Displacement using Components

[joe215]

Homework Statement

A disoriented bird flies 5.18 km east, then 6.2 km north, and then 2.05 km west. What is the magnitude and direction of the resultant displacement? (using the method of components)

The Attempt at a Solution

When I draw a diagram, the resulting figure is a trapezoid. Should I just find the missing side and angle using the pythagorean theorem and trig functions?

 

[Doc Al]

You could, but why don't you solve it as instructed, using the method of components. That will be really easy.