Powerpoints to help with the teaching of the Sine rule, Cosine rule and the Area of a Triangle using Sine. I have included explanations of how the rules are derived in case your class are interested. Also in the Area of a Triangle using Sine powerpoint, I included an example of using it to calculate a formula for Pi! (Which a lot of the kids always seem to write down!). If you like this resource then please check out my other stuff on TES! :)