Questions
A flag staff stands upon the top of a building. At a distance d meters the angles of elevation of the tops of the flag staff and building are and respectively. The height of the flag staff is
detailed solution
Correct option is B
We have tanβ=xd⇒x=dtanβAlso tanα=h+xd⇒h+x=dtanα⇒h+dtanβ=dtanα ⇒h=dtanα−tanβTalk to our academic expert!
Similar Questions
The angle of elevation of top of an unfinished tower at a point distance 120m from its base is 450. How much height must the tower be raise so that angle of elevation of top at the same point to be 600.
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