Question 196932: Prove or disprove: If two triangles have two pairs of congruent sides, the triangles must be congruent. Answer by vleith(2983) (Show Source):
You can put this solution on YOUR website! Euclid proves that SAS, SSS, ASA all result in congruent triangles. Two congruent sides without an angle in there is 'not enough' for ensure the third side is also congruent.