mohsenjaffri01 mohsenjaffri01
  • 22-02-2017
  • Mathematics
contestada

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 wolf1728
  • 22-02-2017
tangent (10) = 120 / distance
distance = 120 / tangent (10)
distance = 120 / .17633
distance = 680.5 feet

 

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