Trigonometric Equations Question 171
Question: A tower subtends an angle of $ 30^{o} $ at a point distant d from the foot of the tower and on the same level as the foot of the tower. At a second point h vertically above the first, the depression of the foot of the tower is $ 60^{o} $ . The height of the tower is
[MP PET 1993]
Options:
A) h/3
B) h/3d
C) 3h
D) $ \frac{3h}{d} $
Show Answer
Answer:
Correct Answer: A
Solution:
- Trick: From $ H=l\tan \alpha ,.,\tan \beta $ , the height of tower is $ h\tan 30^{o}\cot 60^{o}\text{or }\frac{h}{3} $ .
BETA
