Classification of Triangles A triangle is a polygon with three sides. It has three sides and three vertices. There are seven types of triangles. The sum of the angles of a triangle is 180°.Triangles Types can be classified in two ways:By their sides By their angleswhat are the six types of triangles?Six Various Types of Triangles are Isosceles, … [Read more...] about What are the Different Types of Triangles