Respuesta :

tramserran

Answer: 23 ft

Step-by-step explanation:

[tex]cos\theta=\dfrac{adjacent}{hypotenuse}\\\\\\cos80^o=\dfrac{4}{hypotenuse}\\\\\\hypotenuse=\dfrac{4}{cos80^o}\\\\\\hypotenuse=\large\boxed{23}[/tex]