Changes

# [[Elements of a triangle]]: Terms that are associated with triangle.   

# [[Elements of a triangle]]: Terms that are associated with triangle.   

# [[Measures in triangle]]: Parameters that are measured in a triangle.

# [[Measures in triangle]]: Parameters that are measured in a triangle.

# [[Interior and exterior angles in triangle]]:  Angles formed when a triangle is formed.    [[Category:Triangles]]    [[Category:Class 9]]  

# [[Interior and exterior angles in triangle]]:  Angles formed when a triangle is formed.    [[Category:Triangles]]

== Concept 2: Types of triangles based on sides and angles ==

== Concept 2: Types of triangles based on sides and angles ==