Respuesta :

Answer:

28.9

Step-by-step explanation:

cosG=

hypotenuse

adjacent

​

=

31

x

​

\cos 21=\frac{x}{31}

cos21=

31

x

​

31\cos 21=x

31cos21=x

x=28.941\approx \mathbf{28.9}\text{ feet}

x=28.941≈28.9 feet