Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

The angle of elevation of the top of a tower of height 100 m from a point which is 100√3 m away from the foot of the tower on a horizontal plane is:

Options:

60°

30°

45°

75°

Correct Answer:

30°

Explanation:

AB = Tower = 100 m

BC = 100\(\sqrt {3}\) m

From figure, tanΘ = \(\frac{AB}{BC}\) = \(\frac{100}{100\sqrt {3}}\) = \(\frac{1}{\sqrt {3}}\)

⇒ Θ = 3