Examine the diagram at right. State the relationship between each pair of angles listed below (such as vertical angles) and state whether the angles are congruent, supplementary, or neither.  

1. $∠e$ and $∠a$ 

   Answer (a):

   corresponding angles, $≅$

2. $∠t$ and $∠u$ 

   Answer (b):

   alternate interior angles, $≅$

3. $∠v$ and $∠x$ 

4. $∠g$ and $∠v$