what is the length, x, of the diagonal line drawn? round to the nearest tenth if necessary

SOLUTION:
Step 1:
In this question, we are given the following:
Step 2:
From the question, we can see that this is an application of Pythagoras' Theorem, such that:
[tex]\begin{gathered} x^2=5^2+3^2 \\ x^2\text{ = 25+ 9} \\ x^2\text{ = 34} \\ \text{square}-\text{root both sides, we have that:} \\ x\text{ = }\sqrt[]{34} \\ \text{x = 5.830951895} \\ x\approx\text{ 5.8 fe}et\text{ ( to the nearest tenth) ( }OPTION\text{ A)} \end{gathered}[/tex]