This video is on Q. 6 (Ex. 9.1) of Ch. 9 ( Some applications of trigonometry ) - class 10.

Chapter 9 | Exercise 9.1 | Q. No. 6 | Class 10 Maths | NCERT solutions | CBSE

Q. 6 : A 1.5 m tall boy is standing at some distance from a 30 m tall building. The angle of elevation from his eyes to the top of the building increases from 30° to 60° as he walks towards the building. Find the distance he walked towards the building.



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