Answer:
→→→AAA= Angle -Angle- Angle
Suppose there are two equilateral triangles, having length of sides being ,6 cm and of other equilateral triangle measure of sides being 13 cm.
Each interior angle of Both the equilateral triangle will be of 60 degree,but they are not congruent,as size of equilateral triangle having side length 13 cm will be larger than side of equilateral triangle having side length 6 cm.
Both the Equilateral triangle are similar , but not congruent.
→"Congruency guarantees, similarity", but "Similarity does not guarantee Congruency".
So, this a way through which i have explained that
AAA (angle-angle-angle) does not guarantee congruence between two triangles.