Question

As observed from the top of a lighthouse, 45m high above the sea-level, the angle of depression of a ship, sailing directly towards it, changes from 30⁰ to 45⁰. The distance travelled by the ship during the period of observation is: (Your answer should be correct to one decimal place.)

• A. 24.8m
• B. 33.4m
• C. 36.9m
• D. 32.9m

Answer 1

Answer: (D)