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Mathematics 20 Online
OpenStudy (anonymous):

At a certain point the angle of elevation of a tower is found to be tan^-1(5/3). On walking 32 feet directly towards the tower, the angle of elevation become tan^-1(5/2) ; find the height of the tower. . . . ANSWER = 160 ft

OpenStudy (anonymous):

Making a drawing of the situation is very helpful: |dw:1361091703775:dw|

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