So I was doing my homework quite merrily until I go to the end where I ran into word problems.. (why do they always stick them at the end)

Can you guys point me into the right direction?

**Q#1.** The minute hand on a clock is* ***6 cm**** long** and the hour hand is *4 cm* long. **Give an expression for ***d* , **the distance between the tips of the hands**, i**n terms of ***a* , the angle between the hands.
What Does "d"=?

**My Plan of Attack: **I drew a lame picture of the clock hands neatly labeled. I noticed you can form a triangle and thus use Pythagorean to find the distance between the 2 points. But Im not sure which side is the longer side? Do you guys think it should be

2nd, I think, once I know the 3 side lengths, I can use either Cosine law or Sine law to find the angle..

And what is the question asking when they are asking for an expression for "d"?