Question

2.The angle of elevation of a cloud from a point 60 m above a lake is 30° and the angle of depression of the reflection of the cloud in the lake is 60°. Find the height of the cloud from the surface of the lake.​

Answer 1

Answer:

120 m

Step-by-step explanation:

Let AO = H

CD = OB = 60m

A'B = AB = 60 + H

In Δ AOD,

⇒ 120 + H = 3H

⇒ 2 H = 120

⇒ H = 60 m

Thus, height of the cloud above the lake = AB + A'B = 60 + 60 = 120 m.

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Answer 2

Answer:

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