Classify triangles

~6 min

Sort triangles by equal sides and by angle size.

Classifying Triangles by Sides

Equilateral
Isosceles
Scalene

Triangles are classified by their side lengths: equilateral triangles have three equal sides, isosceles triangles have at least two equal sides, and scalene triangles have no equal sides.

💡 Look for the tick marks on the sides to see which lengths are equal.