An angle less than 90° is [ ]; an angle exactly 90° is [ ].
An angle less than 90° is acute; an angle exactly 90° is right.
Flashcards for Edexcel IGCSE Maths Angles, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 2. 22 cards, matched to the Edexcel IGCSE Maths (4MA1) specification.