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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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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

User LubosD
by
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1 Answer

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

User Jerome WAGNER
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