Answer: congruent vertical angles: 1 & 4, 2 &3, 5& 8, 6& 7
congruent alternate angles: 1&8, 2 &7, 4& 5, 3& 6
congruent corresponding angles: 1&5, 2&6, 3&7, 4&8
Step-by-step explanation:
vertical angles are on the opposite sides of the vertex they share
alternate angles are on the opposite sides of the transversal and at the other parallel line
corresponding angles are in the same relative position on the other parallel line
