Answer:
1. angle 2, angle 4, angle 6
2. angle 1, angle 3 angle 5, angle 7
3. If 8 is congruent to 4 and 5 is a supplementary angle to 8, then 5 is a supplementary angle to 4
Explanation:
8 and 2 are congruent by 2 being a vertical angle to 4
8 and 4 are congruent because they are Corresponding Angles
8 and 6 are vertical angles
8 and 1 form are angles that form a strait line
8 and 5 are angles that form a strait line
5 and 7 are vertical angles meaning that it is supplementary to 8
5 and 3 are alternate interior angles meaning that it is supplementary to 8