Entroper on 01 June 2007
There are a few incorrect statements here.
Kruze S is correct that they have to share two sides and an angle, but the tricky part is that the angle must be the one between the two sides. In this case, the angle between the two sides is not marked. If we could assume that it is a right angle, we could say the triangles are congruent.
We do know that the triangles have an equal angle where they touch, thanks to the concept of opposite angles, but this is not sufficient to prove the triangles are congruent.
