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Himmat Rustagi
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Asked: 2020-10-30T04:10:06+00:00 In:

The angle of elevation of the top of a tower from a point on the ground, which is 30 m away from the foot of the tower, is 30°. Find the height of the tower.

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NCERT Solutions for Class 10 Maths Chapter 9
Important NCERT Questions
SOME APPLICAT IONS OF TRIGONOMETRY
(Height and Distance)
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 9.1
Page No:204
Questions No:4

2020-2021cbsechapter 9class10mathematicsncertsome applicat ions of trigonometry
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    1. Best Answer
      The angle of elevation of the top of a tower from a point on the ground, which is 30 m away from the foot of the tower, is 30°. Find the height of the tower.

      Let AB is tower and C is the point 30 m away from the foot of the tower.
      In Δ ABC,
      AB/BC= tan 30°
      ⇒ AB/30 = 1/√3
      ⇒ AB = 30/√3 = 30√3/3 = 10√3
      Hence, the height of the tower is 10√3m.

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    2. Get here all the solutions of class 10 Maths Exercise 9.1

      NCERT Solutions for class 10 Maths Exercise 9.1 all questions in Hindi Medium

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