Triangles can be classified by various properties relating to their angles and sides. The most common classifications are described on this page.
Classifications of Triangles
The Equilateral triangle shown on the left has three congruent sides and three congruent angles.
Each angle is 60°
The Isosceles triangle shown on the left has two equal sides and two equal angles.
The Scalene Triangle has no congruent sides. In other words, each side must have a different length..
The Acute Triangle has three acute angles (an acute angle measures less than 90°)