Maths
Types of Triangle
Compare and classify triangles as equilateral, isosceles, scalene or right-angled, based on their properties and sizes.
MathsAge 9+25 minutes
What this topic covers
- Classify triangles by sides: equilateral (3 equal), isosceles (2 equal), scalene (none equal).
- Classify by angles: right-angled, and recognise a triangle can have two names (right-angled isosceles).
- Use the dash marks for equal sides and the square mark for a right angle.
Core concept summaries
Key ConceptsBy SidesBy Angles: Right-AngledOrientation and the Look Trap
Practice formats pupils may meet
NeurofiED uses varied practice to help pupils apply the idea actively, check understanding and build confidence over time.
clozematchingquiz