Formulae
Glossary
Right-angled triangles
Pythagoras
Trigonometry — finding sides
Trigonometry — finding angles
Putting it together
Non-right-angled triangles
Sine rule — finding sides
Sine rule — finding angles
Cosine rule — finding sides
Cosine rule — finding angles
Which formula to use?
Putting it together
Areas
Triangles, other polygons and circles
Non-right-angled triangles
Circular measure
Arc length
Area of a sector
Putting it together
Practice tasks
Answers
Charlotte Walker BEd, GradDipTchLn, MHealSc.Charlotte has over 10 years' experience in teaching Mathematics.
Victoria Walker BSc (Hons), GradDipTchLn. Victoria has twenty years' experience in teaching Mathematics. She has received a Jim Campbell award for teaching excellence (2003) and an Ernest Duncan award in Mathematics (2007).
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