Sine and Cosine Rules

This PowerPoint of 34 slides covers the 3 sub-topics Sine Rule, Area Formula, and Cosine Rule, easily taking 3 lessons to complete.
The Sine Rule introduction is followed by 8 questions, that can be used as examples or classwork (or a mix of these), calculations are to find both lengths and angles.(obtuse angle calculation is included and used)
Triangle Area formula is covered next, followed by 3 questions each needing multiple calculations.
Thirdly the Cosine Rule is introduced and followed by 6 questions, again these may be used as examples or classwork, both lengths and angles are to be found.
The picture display here shows the question situations used.
I find that application to practical situations and a colourful display boosts student attention and application.
Enjoy !