Question

Which of the following pair of triangles demonstrates that two triangles with three congruent angles are not necessarily congruent?

Answer 1

a

Explanation:

if the two vertex angles are the same then the other two angles of both triangles have to be the identical since all three have to add to 180 then since the two base angles are the same the sides opposite them are congruent and the two triangles are similar by SAS(side angle side)