Two angles are called complementaries if their sum is 90°.
So, the complement of an angle A is B, in which A + B = 90°.
Given A = 48°. Then:
[tex]48+B=90[/tex]To find B, subtract 48 from both sides:
[tex]\begin{gathered} 48+B-48=90-48 \\ 0+B=42\degree \\ B=42\degree \end{gathered}[/tex]Answer: The complement is 42°.
