Answer:
1)54
2)48
3)2
4)135
5)91
Explanation:
supplementry angles are angles whose sum is 180. So,for finding the answers of above questions we will have to subtract the given degrees from 180 one by one
First is 126 so 180-126 is 54
180-132 is 48
180-178 is 2
180-45 is 135
180-89 is 91