The distance of the cell phone from the western tower is 27.47 miles and from the eastern tower is 1.76 miles
<u>Explanation:</u>
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The sketch is attached for the reference.
tan (10) = 

tan (70) = 

Therefore, the distance of the cell phone from the western tower is 27.47 miles and from the eastern tower is 1.76 miles
Your answer to your question is 36in^3