View source for Linear pair axiom : If the sum of two adjacent angles is 180 degrees, then the non-common arms of the angles form a line


=== Objectives ===
To understand if  two adjacent angles form 180<sup>o</sup> angle then the non-common arms of the angles form a line

===Estimated Time===
30 minutes

=== Prerequisites/Instructions, prior preparations, if any ===
Prior knowledge of point, lines, angles

===Materials/ Resources needed===
* Digital - Computer, geogebra application, projector.
* Non digital -worksheet and pencil.
* Geogebra files : “[https://ggbm.at/fzb8796x Linear pair axiom - two adjacent angles form a line.ggb]”
{{Geogebra|fzb8796x}}

===Process (How to do the activity)===
# Give inputs for the two angles – Angle 1 and Angle 2.
# What is the sum of the two angles?
# When do the non-common arm form a line?
# Record the value of Angle 1 , Angle 2.

: {| class="wikitable"
|Sl No.
|Angle 1
|Angle 2
|Angle 1 + Angle 2
|Do the non-common arms form a line
|-
|.
|
|
|}
* '''Evaluation at the end of the activity'''

[[Category:Lines and Angles]]