What is the angle of elevation of the sun when the shadow of a 9-m high pole is 3√3 m long?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 60°
Let the angle of elevation be x
Perpendicular = 9 m
Base = 3 × (3)1/2 m
tanx = 9/[3 × (3)1/2]
⇒ tanx = 31/2
Thus, x = 60°