at a point A 20 metres above the level of water in a lake the angle of elevation of a cloud is 30 degree. the angle of depression of the reflection of the cloud in the lake at A is 60 degree. find the distnace of cloud from A.

I too need answer
  • -13
the height of the cloud is 40 m and the distance is a bit confusing
  • -7
The distance between A and Cloud is 40m
  • -4
Sure 40 know? Yay!
  • 2
40
  • -8
thbks alot mine was also 40m
  • -8
40m
  • -11
surely ans is 40m
  • 2
can anyone plz show the full method???
  • -10
can anyone plz show the full method
  • 0
tan30∘=ECAD=13
tan⁡ 30∘ = ECAD = 13(ED=h)(ED=h) => AD==3
AD =  h 3 ---- (1) tan60∘=FDAD
tan ⁡60∘ = FDAD = 3√3 FD=h+40FD = h + 40 =h+403√AD = h + 403 ---- (2) h3
h+403√h3 = h + 403 3h=h+403h = h + 40 2h=40=>h=20m2h = 40 => h = 20 m EC=h+20=20+20EC = h + 20 = 20+20 =40m= 40 m
40m
  • -1
Dude y is FC h-20??
  • -12
Tan √3 = x+20+20/AC
  • -8
40
  • -8
Why is the reflection of the cloud under the water
  • -7
Here it is :):D

  • 42
I hope this solution will help..note:there are two pictures (complete solution)

  • 22
Picture 2 ..

  • 22
Full solution

  • 2
Full solution , with perfect answer.

  • 9
The answer is 20m
  • -4
Your answer is correct
  • -3
at a point A 20 metres above the level of water in a lake the angle of elevation of a cloud is 30 degree. the angle of depression of the reflection of the cloud in the lake at A is 60 degree. find the distnace of cloud from A.
  • 0
What are you looking for?