Answer:
1, 4, 8
Explanation:
Using the vertical angle theorem, we can show 5 = 8.
Using the alternate exterior angle theorem, 8 = 1.
Finally, using the vertical angle theorem again, 1 = 4.
5 = 8 = 1 = 4
Since 2,3,6,7 are all supplementary angles to the ones we solved for, and they aren't equal, then they wouldn't be considered as = to angle 5.