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Some Application of Trigonometry 
Class 10
Page 2


Some Application of Trigonometry 
Class 10
Angle of Elevation and 
Angle of Depression
The "upwards"
angle from the
horizontal to a line of
sight from the
observer to some
point of interest is
known as Angle of
Elevation.
If the angle goes
"downwards" it is
called an Angle of
Depression.
Page 3


Some Application of Trigonometry 
Class 10
Angle of Elevation and 
Angle of Depression
The "upwards"
angle from the
horizontal to a line of
sight from the
observer to some
point of interest is
known as Angle of
Elevation.
If the angle goes
"downwards" it is
called an Angle of
Depression.
Angle of elevation
Page 4


Some Application of Trigonometry 
Class 10
Angle of Elevation and 
Angle of Depression
The "upwards"
angle from the
horizontal to a line of
sight from the
observer to some
point of interest is
known as Angle of
Elevation.
If the angle goes
"downwards" it is
called an Angle of
Depression.
Angle of elevation
Angle of Depression
Page 5


Some Application of Trigonometry 
Class 10
Angle of Elevation and 
Angle of Depression
The "upwards"
angle from the
horizontal to a line of
sight from the
observer to some
point of interest is
known as Angle of
Elevation.
If the angle goes
"downwards" it is
called an Angle of
Depression.
Angle of elevation
Angle of Depression
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FAQs on PPT: Some Applications of Trigonometry - Mathematics (Maths) Class 10

1. What are some real-life applications of trigonometry?
Ans. Trigonometry is used in various fields such as architecture for designing buildings, in navigation for plotting courses, in astronomy to calculate distances between celestial bodies, in physics for analyzing waves and oscillations, and in engineering for creating models of structures.
2. How does trigonometry help in solving problems related to heights and distances?
Ans. Trigonometry helps in calculating heights and distances using the principles of right triangles. By measuring angles and using trigonometric ratios (sine, cosine, tangent), one can determine the height of an object or the distance to it without needing to measure directly.
3. Can trigonometry be used in computer graphics?
Ans. Yes, trigonometry is extensively used in computer graphics to create and manipulate images. It helps in rotating, scaling, and translating objects, as well as in simulating realistic movements and animations by calculating angles and distances in a virtual space.
4. What role does trigonometry play in music theory?
Ans. Trigonometry is fundamental in music theory, particularly in understanding sound waves. The frequencies of notes can be analyzed using sine and cosine functions, which helps in synthesizing sounds and understanding harmonics and intervals.
5. How is trigonometry applied in sports and athletics?
Ans. Trigonometry is used in sports for analyzing angles and distances to improve performance. Coaches and athletes use trigonometric principles to optimize techniques in activities like basketball shooting angles, long jump trajectories, and even in determining the best angles for swimming starts.
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