Answer:
8.6 ft
Step-by-step explanation:
Using the attached sketch, the sum of angles in the triangle should be 180° hence the missing angle is 180-90-63=27°
Using trigonometry, we know that cosine of an angle is equal to adjacent over hypotenuse
Cos 63°=GE/EF
Making GE the subject of the formula then
GE=EFCos63°
Given EF as 19 ft then
GE=19cos 63=8.62581949505139 ft
Rounded off to the nearest tenth then GE=8.6 ft
