Question

An amateur radio operator erects a 75-foot vertical tower for an antenna. A 117 guy wire is pulled from the top of the tower diagonally to the ground. What angle does the wire make with the ground, to the nearest tenth of a degree?

Answer 1

α=39.80°

Explanation:

applying the law of sin and cos, we have:

`sin\alpha =(75)/(117)=0.6410\\\alpha =acs(0.64)= 39.79`

and to the nearest tenth of a degree

α=39.80°