A tower generates a shadow that is 40 meters long when the sun's angle of elevation is 45°. What is the height of the tower?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 40 m.

Length of tower = AB
Shadow length = BC = 40 m
tan 45° = AB/BC
⇒ 1 = AB/40
⇒ AB = 40 m