Questions
The angles of elevation measured from two points A and B on a horizontal line from the foot of a tower are and . If AB=d, then the height of the tower is
detailed solution
Correct option is A
tanβ=hx⇒x=h cotβtanα=hx+d⇒x+d=h cotα ⇒hcotβ+d=hcotα⇒h=dcotα−cotβ=d.sinαsinβsinβ−αTalk 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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