# 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.

• -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 ⁡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