SOH CAH TOA only works for right-angled triangles. But what about the rest? Enter the sine rule! It connects ANY side with its OPPOSITE angle, letting you solve triangles that don't have a right angle.
This introduction covers Beyond Right Angles within Sine Rule for GCSE Mathematics. Revise Sine Rule in Geometry & Measures for GCSE Mathematics with 12 exam-style questions and 3 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 1 of 5 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Sine Rule
Which of the following is the sine rule?
Explain what is meant by the ambiguous case of the sine rule, and state when it can occur.
Quick recall flashcards
Sine Rule
a/sinA = b/sinB = c/sinC. Use when you have a matched pair (side with opposite angle).
Sine Rule
a/sin A = b/sin B = c/sin C