Question

What is the difference between ASA and AAS criteria of congruence?

Answer 1

The answer to the question is very simple and is clear from the name of congruence  rule itself.
AAS  Congruence Rule- If any two angles and a non-included side of one triangle are equal to the corresponding angles and side of another triangle, then the two triangles are congruent.
ASA Congruence Rule - Two triangles are congruent if two angles and included side of one triangle are equal to the corresponding two angles and the included side of the other triangle.

the main difference between them is that in AAS and ASA is that in AAS side isn't included between the angles whereas, in ASA congruence rule, a side is included between the angles

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