Question

Plz help me on this question ​

Answer 1

Answer:

$\boxed {129\textdegree}$

Step-by-step explanation:

Both angles labeled, are actually Supplementary Angles (which two angles that add up to $180\textdegree$). So, to find the missing measurement of an angle, which is the angle labeled in $x$, you need to take $51\textdegree$ and subtract it from $180\textdegree$ to get the missing angle measurement:

$180\textdegree - 51\textdegree$

$\boxed {129\textdegree}$ (angle measurement for the angle labeled in $x$)