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Applications of Trigonometry Video Lecture | Crash Course: Class 10

FAQs on Applications of Trigonometry Video Lecture - Crash Course: Class 10

1. What is trigonometry?

Ans. Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles. It explores the properties and functions of triangles, using angles and their measures to solve various mathematical problems.

2. How is trigonometry used in real life?

Ans. Trigonometry is used in various real-life applications, such as architecture, engineering, navigation, and physics. It helps in measuring distances, calculating heights and angles, designing bridges and buildings, predicting tides and ocean currents, and analyzing wave patterns.

3. What are the main trigonometric functions?

Ans. The main trigonometric functions are sine (sin), cosine (cos), and tangent (tan). These functions relate the angles of a right triangle to the ratios of the lengths of its sides. Sine is the ratio of the length of the side opposite the angle to the length of the hypotenuse, cosine is the ratio of the length of the adjacent side to the length of the hypotenuse, and tangent is the ratio of the length of the opposite side to the length of the adjacent side.

4. How can trigonometry be used to solve problems involving angles and distances?

Ans. Trigonometry can be used to solve problems involving angles and distances by using the trigonometric functions and the properties of triangles. By knowing the lengths of two sides or an angle and a side of a triangle, one can use trigonometric ratios to find the missing angles or sides. This is particularly useful in navigation, surveying, and astronomy.

5. Can trigonometry be used to determine the height of a building or a mountain?

Ans. Yes, trigonometry can be used to determine the height of a building or a mountain. By measuring the angle of elevation from a point on the ground to the top of the building or mountain, and knowing the distance from the point to the base, trigonometric functions can be used to calculate the height. This method is commonly used in land surveying and satellite imagery analysis.

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Sep 20, 2025 Last updated

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