x

Opposite pairs and the sine rule

Opposite pairs and the sine rule

Triangle ABC with angles A, B, C and opposite sides a, b, c colour matched The sine rule is for non-right-angled triangles, so you do not need a 90∘90^\circ90∘ angle. The key skill is spotting opposite pairs: an angle and the side directly across from it.

The Sine Rule Lesson

  1. IGCSE
  2. /Maths
  3. /The Sine Rule

Step-by-step lessons covering Edexcel IGCSE Maths The Sine Rule for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.

Lessons