The triangles are classified as follows
a. Not congruent
b. Impossible to tell
c. congruent by AAS
What is AAS congruence?
According to the AAS congruence criterion, if two triangles have two corresponding angles that are congruent and the non-included sides between these angles are also congruent, then the triangles are congruent.
In the figure, only triangle in c, is congruent
b. does not have enough information hence impossible to say