A lamp-post stands on a horizontal platform high

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

Problem

A lamp-post stands on a horizontal platform

2\,\text{m}

high. From a point on the ground

15\,\text{m}

away from the base of the platform, the angle of elevation of the top of the lamp-post is

30^\circ

. Find the height of the lamp-post itself.