Answer:
D. 1, 3, 5, and 7 are congruent / 2, 4, 6, and 8 are congruent
Step-by-step explanation:
Vertical angles (such as 5 and 7) are congruent.
This means that angles 5 and 7 are congruent,
angles 1 and 3 are congruent,
angles 6 and 8 are congruent,
and angles 2 and 4 are congruent.
