Question

In ΔGHI, the measure of ∠I=90°, the measure of ∠G=21°, and GH = 31 feet. Find the length of IG to the nearest tenth of a foot. please help

Answer 1

28.9

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