## Chapter 7 Triangles

Chapter 7.TrianglesDefinition:- a closed figure formed by three intersecting lines is called a triangle. (‘Tri’ means ‘three’). A triangle has three sides, three angles and three vertices. For example, in triangle ABC, denoted as ABC ; AB, BC, CA are the three sides, <A, <B, <C are the three angles and A, B, C are … Read more