Given the Right Triangle XYZ, you can identify that:
![\begin{gathered} XY=3.8 \\ XZ=6.5 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/e3g2ro7tj379cngl2n76f1wvkws2uwpppu.png)
In order to find the measure of the angle "x", you need to use the following Inverse Trigonometric Function:
![\theta=cos^(-1)((adjacent)/(hypotenuse))](https://img.qammunity.org/2023/formulas/mathematics/college/wvcjd4xzzc28plrvup2ft8jw9ue4xy5tc7.png)
In this case, you can identify that:
![\begin{gathered} \theta=x \\ adjacent=XY=3.8 \\ hypotenuse=XZ=6.5 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/kwst9sv2uf0oyz7leqd8hr5agocyefo4xl.png)
Then, by substituting values and evaluating, you get:
![x=cos^(-1)((3.8)/(6.5))](https://img.qammunity.org/2023/formulas/mathematics/college/fc2ffs6mjz9bwj8lorj6kbcj95hguhplzi.png)
![x\approx54\text{\degree}](https://img.qammunity.org/2023/formulas/mathematics/college/dpsdnr2o0mm3xsh70l42m5ywa4n141uoyf.png)
Hence, the answer is:
![x\approx54\text{\degree}](https://img.qammunity.org/2023/formulas/mathematics/college/dpsdnr2o0mm3xsh70l42m5ywa4n141uoyf.png)