Alright one last vector question...

A disoriented physics professor drives a distance 3.40km north, then a distance 3.80km west, and then a distance 1.55km south.

Find the magnitude of the resultant displacement, using the method of components.

Find the direction of the resultant displacement, using the method of components.

So I'm not getting a triangle...well not sure if it should be one and should I just use Pythagorus with all three components to get the magnitude?