Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

The angle of elevation of a bird from a point 30√3 m from the straight line joining the bird to its reflection on a pond is 30°. Find the height of the bird (in m) hovering over the pond?

Options:

60

43.3

20√3

30

Correct Answer:

30

Explanation:

                       1            :            \(\sqrt {3}\)

tan 30° =       QR           :              PR

                      ↓                             ↓

                      ↓                           30\(\sqrt {3}\)

                   30 × 1 = 30m