mohsenjaffri01 mohsenjaffri01

22-02-2017
Mathematics

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a forest ranger in a 120ft observation tower sees a fire. The angle of depression to the fire is 10 What is the horizontal distance between the tower and the fire

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wolf1728 wolf1728

22-02-2017

tangent (10) = 120 / distance
distance = 120 / tangent (10)
distance = 120 / .17633
distance = 680.5 feet

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