The top of a tree is observed from a point on level ground at an angle of elevation of 30°
MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Trigonometry · Applications of Trigonometry
Problem
The top of a tree is observed from a point on level ground at an angle of elevation of 30°. If the tree is 20 m tall, how far (to the nearest metre) is the observer from the foot of the tree?
(a) 34m
(b) 17m
(c) 35m
(d) 12m