## Classifying Triangles by Angles

Triangles have three sides and three angles - tri - (three) - angle (angles). The sum of all the angles in any triangle is 180°.

There are three different types of triangles:

Equilateral

Isosceles

Scalene

Isosceles triangle have two side and two angles equal.

If the isosceles triangle has a right angle, its called a right isosceles triangle.

All of the sides and angles of a scalene triangle are different.

Scalene Triangle has all the sides and angles different.