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Two weather tracking stations are on the equator 165 miles apart. A weather balloon is located on a bearing of N 40°E from the western station and on a bearing of N 22°E from the eastern station. How far is the balloon from the western station?

Two weather tracking stations are on the equator 165 miles apart. A weather balloon-example-1
User Sharae
by
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1 Answer

5 votes

The distance from balloon to the western station is 495 miles.

Step-by-step explanation:

The distance between two weather stations are 165 miles.

The angle of the regular triangle bearing from the western station is given by

90° - 40° = 50°

The angle of the regular triangle bearing from the eastern station is given by

90° + 22° = 112°

The angle of the balloon is given by

180° - 50° - 112° = 18°

Now, to find the distance of the balloon from the western station, let us use the law of sines formula,


(a)/(sin a) = (b)/(sin b)

Let us substitute the values.

Where
a=x, sin a= sin 112 and
b=165, sin b = sin 18

Thus, we have,


(x)/(sin 112) =(165)/(sin 18)

Multiplying both sides of the equation by sin 112, we get,


x=sin 112((165)/(sin 18) )

Simplifying, we have,


x=0.9272(533.98)\\x=495

Thus, the distance from balloon to the western station is 495 miles.

User Abhiieor
by
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