Which is the angle of depression from the lighthouse on the boat ?

Answer:
∠4
Step-by-step explanation:
An angle of depression is measured from the horizontal downwards.
This is ∠4 in the diagram
Answer:
The angle of depression from the light house to the boat is <4
Step-by-step explanation:
From the figure we can see a light house and a boat.
The angle of depression means that angle from the horizontal downward to an object.
From the figure we can see that, <4 is the angle of depression from the light house to the boat.
Therefore the answer is <a