From a point on the ground

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

Problem

From a point on the ground, the angles of elevation of the bottom and the top of a transmission tower fixed at the top of a

20\,\text{m}

high building are

45^\circ

and

60^\circ

, respectively. Find the height of the tower.