Back to Class X Mathematics
Class X Mathematics

Chapter 9: Some Applications of Trigonometry

Standard NCERT & CBSE aligned study curriculum. Master concepts, track accuracy, revise weak areas, and challenge yourself with 9 customized practice modes.

Example 1

Height of a Tower

A person stands 30m away from a tower. The angle of elevation to the top is 30 degrees. Find the height of the tower.
sin θcos θθ

Calculation Steps:

  1. 1Identify parameters: d = 30m, elevation angle = 30 degrees.
  2. 2Recall tan(30) = 1/√3.
  3. 3Use formula: h = d * tan(θ) = 30 * (1/√3).
  4. 4Rationalize: h = 10√3 ≈ 17.32m.
Solution17.32m