Triangles can be classified by various properties relating to their angles and sides. We've been classifying triangles into 4 different types.
1. Right angled triangles - they have a 90 degree angle.
2. Equilateral triangles - they have three equal angles and three equal sides.
3. Isosceles triangles - they have 2 equal angles and 2 equal sides.
4. Scalene triangles - all sides are different lengths.