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A 1.2m tall girl spots a balloon moving with the wind in a horizontal line at a height 88.2 m from the ground. The angle of elevation of the balloon from the eyes of the girl at any instant is 60°.After sometime, the angle of elevation reduces 30°.Find the distance travelled by the balloon during the interval.

 

 

This question is exactly same as Ex 9.1, 14 of Chapter 9 Class 10 in the NCERT Book.

Please check the answer and video here

https://www.teachoo.com/1814/535/Ex-9.1--14---A-1.2-m-tall-girl-spots-a-balloon-moving-with-wind/category/Ex-9.1/


Transcript

Question 34 (Choice - 2) A 1.2m tall girl spots a balloon moving with the wind in a horizontal line at a height 88.2 m from the ground. The angle of elevation of the balloon from the eyes of the girl at any instant is 60°.After sometime, the angle of elevation reduces 30°.Find the distance travelled by the balloon during the interval.

  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

About the Author

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo