IP EMaths Notes (Upper Sec, Year 3-4): 10) Trigonometric Applications

Q: What does IP EMaths Notes (Upper Sec, Year 3-4): 10) Trigonometric Applications cover?
A: Apply sine and cosine rules, bearings, and area formulas to non-right-angled triangles and navigation tasks.

Extend beyond right triangles with the sine rule, cosine rule, and $\tfrac{1}{2} ab \sin C$. Always sketch the triangle or bearing diagram first to avoid angle ambiguity.

Keep the full topic roadmap handy via our IP Maths tuition hub so you can jump into related drills, quizzes, or diagnostics as you move through these notes.

Formula summary

• Sine rule: $\dfrac{a}{\sin A} = \dfrac{b}{\sin B} = \dfrac{c}{\sin C}$