Given figure is of a quadrilateral, with four sides.
We have, the sum of all the interior angles in a quadrileteral is 360.
Thus, we have,
[tex]80+95+38+x=360[/tex]
Solving for x, we have,
[tex]\begin{gathered} x+213=360 \\ x=360-213=147 \end{gathered}[/tex]
Thus, x = 147.
