Trigonometric Equations Question 130
Question: The angle of elevation of a tower at a point distant d meters from its base is 30°. If the tower is 20 meters high, then the value of d is
[MP PET 1982, 88]
Options:
A) $ 10\sqrt{3}m $
B) $ \frac{20}{\sqrt{3}}m $
C) $ 20\sqrt{3}m $
D) $ 10 $ m
Show Answer
Answer:
Correct Answer: C
Solution:
- $ 20\cot 30^{o}=d $
$ \Rightarrow $ $ d=20\sqrt{3} $ .
BETA
