A student stands on level ground 40 m from the foot of a flag-pole
MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Trigonometry · Applications of Trigonometry
Problem
A student stands on level ground 40 m from the foot of a flag-pole. The angle of elevation of the top of the pole is 30∘. Find the height of the flag-pole (take tan30∘=0.577).
(a) 20 m
(b) 23 m
(c) 12 m
(d) 69 m