The angle of depression from the top of a high lighthouse to a boat on the sea is

MATHEMATICS · Subjective · CBSE · Mathematics · Applications of Trigonometry · Applications of Trigonometry

Problem

The angle of depression from the top of a

60\,\text{m}

high lighthouse to a boat on the sea is

30^\circ

. Calculate, to the nearest metre, the horizontal distance of the boat from the base of the lighthouse.