Answer :-
[tex]\longrightarrow \sf The \: angle's \:measure \:is \:15⁰[/tex]
Solution:-
Two angles are said to be complimentary if their sum is 90⁰. These angles are called compliment of each other.
Assumption :-
[tex]\red{\leadsto}\:[/tex][tex]\textsf{let \: the \: angle \: be \:x } [/tex]
[tex]\green{\leadsto}\:[/tex][tex]\textsf{Complimentary \:angle \:will \:be \:5x }[/tex][tex]\sf [/tex]
[tex]\green{ \underline { \boxed{ \sf{Sum \: of \: complimentary \:angles = 90⁰}}}}[/tex]
[tex]\begin{gathered}\\\implies\quad \sf x+5x = 90⁰ \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf 6x = 90⁰ \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf x = \frac{90}{6} \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf x = 15⁰\\\end{gathered} [/tex]