On a straight line passing through the foot of the tower, two points C and D are at distances 4m and 16m from the foot respectively. if angles of elevation of C and D from the top of the tower are complementary, then find the height of tower...... only diagram required....
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Here is the ans!! hope it helps u!!
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Hasti152002:
where are angles of elevation??
oops sry forgot to write it...
daat nhi rahi sirf puch rahi hu
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Let the angles of elevation be x and y
given that x+y=90
let the height of the tower = H
tan x =H/4
tan y =H/16
since x+y=90
tan(x+y)=infinite
(tanx + tany)/(1-tanx*tany)=infinite
1- tanx*tany= 0
1- (H^2)/64=0
H^2=64
H=8
given that x+y=90
let the height of the tower = H
tan x =H/4
tan y =H/16
since x+y=90
tan(x+y)=infinite
(tanx + tany)/(1-tanx*tany)=infinite
1- tanx*tany= 0
1- (H^2)/64=0
H^2=64
H=8
diagram ka pic bhi send kar do plz
ohk
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