# Question #c997d

##### 1 Answer

Mar 23, 2017

By the description of the question, one obtains that the signal can travel at most

Now that the Helicopter is

#### Explanation:

By using the law of cosines, the distance between Zach and the helicopter is, (here the cosine term is 0 since east and south are perpendicular directions)

Thus,

Now you know can decide yourself if the signal reaches the helicopter!