Answer:
1. All angles that have the same position with regards to the parallel lines and the transversal are corresponding pairs 3 + 7, 4 + 8 and 2 + 6.
2. Alternate interior angles and co-interior angles.
Alternate Interior Angles: These angles are formed when two parallel lines are intersected by a transversal.
Co-Interior Angles: These angles are the pair of non-adjacent interior angles on the same side of the transversal.
