Changes

Three lines intersect with each other in a plane to form a closed figure. Vertices are formed at the intersecting points and edges that mark the triangle are sides.

Introducing formation of a shape with least number of lines and the space enclosed by these lines form a geometric shape.The key geometric concepts that are related with this are explained.  

=== Objectives ===

=== Objectives ===

*Understand formation of triangles

*Understand formation of triangles

*Digital : Computer, geogebra application, projector.

*Digital : Computer, geogebra application, projector.

*Non digital : Worksheet and pencil

*Non digital : Worksheet and pencil

*Geogebra files :  '''“[https://www.geogebra.org/m/prvUJHb5 Introduction to a triangle.ggb]”'''

*Geogebra files :  '''“[https://www.geogebra.org/m/kenedcfx Introduction to a triangle.ggb]”'''

{{Geogebra|prvUJHb5}}

{{Geogebra|kenedcfx}}

===Process (How to do the activity)===

===Process (How to do the activity)===