Question

A man on a cliff observes a boat at an angle of depression of 30deg which is approaching the shore to the pointimmediately beneath the observer with a uniform speed. Six minutes later, the angle of depression of the boatis found to be 60deg. Find the time taken by the boat to reach the shore.​

Answer 1

Answer:

A man on a cliff observes a boat at an angle of depression of 30deg which is approaching the shore to the pointimmediately beneath the observer with a uniform speed. Six minutes later, the angle of depression of the boatis found to be 60deg. Find the time taken by the boat to reach the shore.