we know that
Supplementary angles are those angles whose sum is equal to \(180\) degrees and vertical angles are angles that are congruent.
so
Let
x--------> the first angle
y--------> the second angle
so
\(x=y\) --------> equation \(1\)
\(x+y=180\) --------> equation \(2\)
Substitute equation \(1\) in equation \(2\)
\(x+[x]=180\)
\(2x=180\)
\(x=90\)
\(y=90\)
therefore
the answer is
the angles are right angles
