This youtube clip goes through in detail how to use the sine rule including labelling triangles. There is an example from about 3min 40secs in. The clip below discusses the cosine rule.
This clip above has some 3D trig questions and the clip below goes through the basics of bearings - it is simple but well explained.
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This clip explains how you can decide whether a triangle forms or not as well as introducing the ambiguous case for Sine Rule.
This above clip has an example of solving for the ambiguous case.
The clip below goes through some bearing examples with solutions. The first approx 4 minutes of this video can be skipped - move to where he starts the questions. 2nd question starts at about 13 minute mark; 3rd question at about 19.5 mins. Remember we don't use minutes in our angles at all - just decimal places.
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