Follow the steps to find thearea of the shaded region.The height (h) is needed tofind the area of the triangle.Some imaginary lines havebeen drawn to help find it.Start by find the measure ofangle x.Angle x = [?]°

Given
To find:
The value of angle x.
Explanation:
It is given that,
Here, the line AB is a straight line.
That implies,
[tex]\begin{gathered} x+129=180 \\ x=180-129 \\ x=51\degree \end{gathered}[/tex]Hence, the value of the angle x is 51°.