Find the length of the missing side, x. Round to the tenths place.A2140BX

Given data:
The given right angle triangle.
The expression for the value of x is,
[tex]\begin{gathered} x=21\cos (40^{\circ}) \\ =16.086 \\ \approx16.1\text{ } \end{gathered}[/tex]Thus, the value of x is 16.1 units.