If the value of $x$ in the following figure is $k°$, then find the value of $k$:

Find the value of $x$ in the following figure:

Find the value of $x$ in the following figure:

Find the value of $x$ in the following figure:

If $x=k°$ in the following figure, then find $k$.

Find the value of $x$ in the following figure (Write the numerical value of angle as an answer without degree symbol)