Answer:
Angles 1&2, 2&4, 4&3, 1&3, 6&8, 5&6, 5&7, or 7&8 (any of these answers will do)
Explanation:
To find the answer to this problem, we just need to look at the definition of 'supplementary.' For two angles to be supplementary means that the sum of their measures add up to 180 degrees. An angle that has a measure of 180 degrees is a straight line. So, any two angles added together that create a straight line would be considered supplementary.