Question

The angle of elevation from Tammy to the helicopter is 12 degrees. Tammy and Rusty are 700 meters apart. If Tammy is 400 meters from the helicopter, find the distance from Rusty to the helicopter. Round the answer to the nearest whole meter. A.146 meters B.320 meters C.574 meters D.806 meters

Answer 1

The answer is B:320 meters

Answer 2

Explanation:

Alright, lets get started.

Please find the attached diagram.

Takig cosine law in triangle ,

`x^2=400^2+700^2-2*400*700*cos 12`

`x^2=160000+490000-547762.6564`

`x^2=102237.3436`

Taking square root on both sides

`x=319.75`

To the nearest whole meters

The distance from Rusty to the helicopter is 320 meters. : Answer

Hope it will help:)