Question

1. Classify the pair of angles

Answer 1

Supplementary is when two angles together add up to 180°, and complimentary is when they add up to 90°. 
The first angles together make 90°, so they are complimentary, and they are next to each other so they are adjacent, so it is B.
The second angles are 60°, and they ardent vertical so they are none of these. The third angles add up to 180° so they are supplementary, so it is D.
The fourth angles are a right angle, and you can see by the little square at the point. And right angles are always 90°, so all you have to do is 90-55.1, and that gives you 34.9, so x=34.9, so it is A.
The fifth angles together make a straight line, and a straight line is 180°, so 180-72=108, so x=108, so it is D.

Answer 2

1.)B
2.)D
3.)B
4.)A
5.)D