Classifying Triangles

A triangle is a three-sided polygon.

Acute (less than 90°), Right (exactly 90°), Obtuse (more than 90°).

A triangle where all three angles are acute.

A triangle that has one right angle.

A triangle that has one obtuse angle.

A triangle where all three sides are equal and all angles are 60°.

A triangle with at least two sides that are equal in length.

A triangle where all sides and angles are different.

By identifying if it has acute, right, or obtuse angles.

By identifying if it is equilateral, isosceles, or scalene.