Loading…
Loading…
GCSE Mathematics · key term
The angle directly across the triangle from a particular side; side is opposite angle .
Used by Edexcel and OCR
Specification G22 · Paper 1, Paper 2, Paper 3
Revise: Sine and Cosine RulesUse the sine rule when you know an opposite side–angle pair and also know, or need to find, another side or its opposite angle. This commonly gives ASA, AAS or SSA information.
Specification 10.05d · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
The angle across a triangle from a particular side, with neither of its arms forming that side.
Label each side with the lower-case letter of its opposite angle before substituting into the sine rule.
Create a free account to read GCSE Mathematics revision notes for your exam board and track your progress.