From a point on level ground away from the foot of a tower

MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Trigonometry · Applications of Trigonometry

Problem

From a point on level ground

40\,\text{m}

away from the foot of a tower, the angle of elevation of its top is

30^\circ

. The height of the tower is (a)

46.2\,\text{m}

(b)

23.1\,\text{m}

(c)

20\,\text{m}

(d)

40\sqrt{3}\,\text{m}