Answer:
[tex]\theta\approx56.31^\circ[/tex]
Review attached graph and explanation
Step-by-step explanation:
Since [tex]cos\theta=\frac{adjacent}{hypotenuse}[/tex], then [tex]cos\theta=\frac{2}{\sqrt{13}}\rightarrow\theta=cos^{-1}(\frac{2}{\sqrt{13}})\approx56.31^\circ[/tex]
