Question

The angle of depression of a boat from the top of the light house is 25°. If the height of light house is 50 m, then calculate the distance of the
lighthouse from the boat.
Options
100.2 m
105.2 m
107.2 m
103.2 m

Answer 1

Answer:

Height of light house =60 m

Angle of depression = 30  

∘

 

Let the distance of boat from the light house = s

Then, angle of depression = angle of elevation

tan∠ of elevation =  

distance

height

​  

 

tan30=  

s

60

​  

 

s=60  

3

​  

 m

Step-by-step explanation: