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anonymous
 one year ago
find the height of a flag pole if the angle of elevation of its top changes from 30 to 45 degrees as the observer advances 10 ft. towards the base
anonymous
 one year ago
find the height of a flag pole if the angle of elevation of its top changes from 30 to 45 degrees as the observer advances 10 ft. towards the base

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Pawanyadav
 one year ago
Best ResponseYou've already chosen the best response.1Let height be h Then distance from pole=h/tan30 =h√3. (Tan30=1/√3) Again Angle is 45 Than distance =h/tan45 =h. (Tan45=1) Now According to question h√3h=10. Solve for h now.

Pawanyadav
 one year ago
Best ResponseYou've already chosen the best response.1Make diagram for more illustration Remember tanx=perpendicular/base So. Length of base=perpendicular/tanx

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0why did you use \[\sqrt{3}\] ?

Pawanyadav
 one year ago
Best ResponseYou've already chosen the best response.1We can write it 1/√3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh i see thank you :)

Pawanyadav
 one year ago
Best ResponseYou've already chosen the best response.1As 3=√3×√3 Canceling one √3 we get √3/3=1/√3
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