Question

What is the complement and supplement of 18.y degree?

Answer 1

Do you mean `18^o`?
If so, the complement is `72^o" and the supplement is`162^o#.

Explanation:

The complement of an angle is a second angle that adds to the first to make a right angle. So subtract any angle measure that's less than `90^o` from `90^o`.
Likewise, the supplement of an angle is the angle you add to the original to make `180^o`.