Ques 24
Let AO = H
CD = OB = 60 m
A' B = AB = 60 + H
In ∆ AOD,
Now, In ∆ A'OD,
⇒ 120 + H = 3H
⇒ 2H = 120
⇒ H = 60 m
Thus, height of the cloud above the lake = AB + A'B = 60 + 60 = 120 m.
Let AO = H
CD = OB = 60 m
A' B = AB = 60 + H
In ∆ AOD,
Now, In ∆ A'OD,
⇒ 120 + H = 3H
⇒ 2H = 120
⇒ H = 60 m
Thus, height of the cloud above the lake = AB + A'B = 60 + 60 = 120 m.