Postulates in proving triangle congruent

1. SSS Postulate :  If three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent.

         Example:
             
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2. SAS Postulate :  If two sided and the included angle of a triangle are congruent to two sided and the included angle of another triangle , then the two triangles are congruent.                     
  
          Example:
               
This photo was taken from https://images.slideplayer.com/14/4491094/slides/slide_6.jpg.

 3. ASA Postulate :   If two angles and the included side of a triangle are congruent to two angle and the included side of another triangle, then the two triangles are congruent. 

             Example:
                    
This photo was taken from https://images.slideplayer.com/27/9211796/slides/slide_7.jpg.
4. AAS/SAA Postulate : If two angles and the non included side of one triangle are congrunt, respectively, to the corresponding angles and the non-included side of another triangle , then the two triangles are congruent.   

            Example:
                   
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