An operator at the top of a lighthouse sights a sailboat. The point from which the sighting is made is 25 m above sea level. The

Question

2 years ago

9

angle of depression of the sighting is 10 degrees. How far is the boat from the base of the lighthouse?

1 answer:

Aneli [31] · Answer 1 · 2022-08-27T17:56:30+03:00

Aneli [31]2 years ago

4 0

Answer:

141.78 m

Step-by-step explanation:

Let d = distance of boat from the base of the lighthouse

Tan 10 = 25/d

d tan 10 = 25

d = 25/tan 10

d = 141.78 m