The included angle is the angle situated between [ ].
all three known sides
two known sides
two known angles
a known side and an angle
Flashcards for Edexcel IGCSE Maths The Cosine Rule, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 2. 20 cards, matched to the Edexcel IGCSE Maths (4MA1) specification.