Please help me this is due in 20 minutes

Answer:
< y and < z are vertiacl angles.
Step-by-step explanation:
By definition, vertical angles are two congruent angles formed by two intersecting lines. These angles share the same vertex, but are nonadjacent from each other.
If you also look closely at < y and < z, they seem to be mirror images of one another. This means that they have the same measurement or degrees.