Question

I need to know if it’s A,B c or D

Answer 1

So,

As you can notice, the measure of the angle TKF is 90°.

So, we could write:

$\begin{gathered} 5(x+7)=90 \\ 5x+35=90 \\ 5x=90-35 \\ 5x=55 \\ x=11 \end{gathered}$

Therefore, x=11.