Maths-
General
Easy
Question
What additional information is necessary to prove that the given triangles are congruent by AAS congruence postulate?
Hint:
Recall all the postulates and then figure out what third information could be so that the triangles become congruent.
The correct answer is:
It is given that one side AB = PQ is equal and
One angle 
BCA = QRP is equal
So, to prove that triangle is congruent by AAS congruency postulate we need two angles and a non – included side.
Since we have AB = PQ we just need an angle such that these sides are not included.
So, we need either BAC = QPR or ABC = PQR
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