Respuesta :
Answer:
[tex]IG=28.9\ ft[/tex]
Step-by-step explanation:
we know that
In the right triangle GHI
[tex]cos(G)=\frac{IG}{GH}[/tex] ----> by CAH )adjacent side divided by the hypotenuse)
substitute the given values
[tex]cos(21^o)=\frac{IG}{31}[/tex]
solve for IG
[tex]IG=cos(21^o)(31)=28.9\ ft[/tex]
see the attached figure to better understand the problem
