Each of these triangles have an angle and two sides that are corresponding and congruent. The congruent corresponding angle is NOT between the congruent sides.
How many triangles can you make? Are they all the same (congruent)?
We started with two triangles that each shared two sides and an angle, but the angle wasn't between the sides. If two triangles share two sides with an angle not between them, we can say that the triangles are: