A guy wire is attached to the top of a radio antenna and to a point on horizontal ground that is 40.0 meters

base-of-the-antenna

#1

A guy wire is attached to the top of a radio antenna and to a point on horizontal ground that is 40.0 meters from the base of the antenna. If the wire makes an angle of 58°20’ with the ground, approximate the length of the wire

Answer:

the cosine of the angle equals 40.0 m divided by the length of the wire

cos(58º20’) = 40.0 m / L

L = 40.0 m / cos(58º20’)