NCERT Solutions for Class 10 Maths Chapter 9 Some Applications of Trigonometry Ex 9.1

NCERT Solutions for Class 10 Maths Chapter 9 Some Applications of Trigonometry of exercises 9.1 for all boards. We have updated all the contents for the new academic session 2020-2021.

In this chapter, you have studied the following points:

•  The line of sight is the line drawn from the point of view of the observer to the object seen by the observer.

•  The angle of elevation of the observed object is the angle formed by the line of sight with the horizontal level when it is above the horizontal level, that is, when we raise our head to see the object.
•  The angle of depression of an object is seen as the angle formed by the line of sight with the horizontal level when it is below the horizontal level, that is, when we lower our head to see the object.
• The height or length of an object or the distance between two distant objects can be determined with the help of trigonometric ratios.