## RD Sharma Class 10 Solutions Chapter 12 Some Applications of Trigonometry

Some Applications of Trigonometry Summary:

• The line of sight is the line drawn from the eye of an observer to the point in the
object viewed by the observer.
• The angle of elevation of an object viewed, is the angle formed by the line of sight
with the horizontal when it is above the horizontal level, i.e., the case when we raise
our head to look at the object.
• The angle of depression of an object viewed, is the angle formed by the line of sight
with the horizontal when it is below the horizontal level, i.e., the case when we lower
our head to look at 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.

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RD Sharma Class 10 Solutions Chapter 9 Some Applications of Trigonometry exercise 12.1

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