Answer: Angles 1,4,5, and 8 are all 49 degrees. Angles 2,3,6, and 7 are all 131 degrees
Explanation:
An entire line is 180.
1,4,5, and 8 are all the same angles and so are 2,3,6, and 7.
So if you already know 5 then you know 1,4, and 8.
180-49=131 and that gives you 2,3,6, and 7.