Sine Rule, Cosine Rule, and Area of a Triangle (Trigonometry)

A tutorial on how to decide when to use the Sine Rule or the Cosine Rule and when you may need to use both. Also how to use the Sine Rule or Cosine Rule in conjunction with the formula for the area of a triangle.

[slamdunkndonuts]

Just did a practice exam and used your methods, hopefully i did well!

[taipullen]

Hi, does this standard also require the tangent formula? I've got the test for this standard tomorrow, and can't find any that explain tangent anywhere as good as you. (still have no idea how to use, and when to use in what circumstances.)
Cheers

[nawa]

I got a question, Are we not allowed to use the c which is 7 in the Area formula?