A building stands on a horizontal platform that is 4 m high
MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Trigonometry · Applications of Trigonometry
Problem
A building stands on a horizontal platform that is 4 m high. From a point on the ground 40 m away from the foot of the platform, the angle of elevation of the top of the building is 30°. What is the height of the building alone (excluding the platform)?
(a) 23.1m
(b) 203m
(c) 19.1m
(d) 16.1m