Here's the solution,
The given triangle is a right angled triangle,
So, by Using Trigonometry :
=》
[tex] \sin(30) = \dfrac{x}{13} [/tex]
=》
[tex] \dfrac{1}{2} = \dfrac{x}{13} [/tex]
=》
[tex]x = \dfrac{13}{2} [/tex]
=》
[tex]x = 6.5[/tex]
hence, value of x = 6.5 units
