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## Homework Statement

If the wind drives a yacht at 080° with a speed of 10 knots and the tide is running at 6 knots at 040°, what is the actual velocity of the yacht?

## Homework Equations

## The Attempt at a Solution

I started by drawing the two vectors (6 and 10) head to tail. I want to find the length of the resultant vector (side a) and angle x° (the yellow one). So first, I drew the green line parallel to the north line which allowed me to fill in the angles around it. I'm now completely stuck on how to figure out side a and angle x°. If anyone could point me in the right direction I'd be greateful!