NCERT Books For Class 10 Maths: Download CBSE Class 10 Maths Book Get Free NCERT Solutions for Class 10 Maths Chapter 9 Ex PDF. Some Applications of Trigonometry Class 10 Maths NCERT Solutions are extremely helpful while doing your homework or while preparing for the exam. Exercise Class 10 Maths NCERT Solutions were prepared according to CBSE marking scheme and myboat269 boatplansted Reading Time: 7 mins. List of Exercises in class 10 Maths Chapter 9: Exercise Solutions � 16 Questions (16 long answers) In this chapter, � Some applications of trigonometry�, class 10 students will get to know how trigonometry is helpful in finding the height and distance of different objects without measuring. Aug 03, �� NCERT Solutions for Class 10 Maths Chapter 9: Some Applications Of Trigonometry is an important chapter as per the NCERT Class 10 Maths syllabus which includes several exercise problems. Students who are searching for solutions to the exercise problems have come to the right place. We bring you the detailed CBSE NCERT Solutions for Class 10 Maths Chapter 9 solved in a Estimated Reading Time: 6 mins.
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Find the height of the tower and the width of the CD and 20 m from pole AB. Determine the height of the tower. If one ship is exactly behind the other on the same side of the lighthouse, find the distance between the two ships. Find the distance travelled by the balloon during the interval. A straight highway leads to the foot of a tower. Find the time taken by the car to reach the foot of the tower from this point. The angles of elevation of the top of a tower from two points at a distance of 4 m and 9 m from the base of the tower and in the same straight line with it are complementary.

Prove that the height of the tower is Byjus Class 9 Maths Chapter 13 Excel 6 m. The height or length of an object or the distance between two distinct objects can be determined with the help of trigonometric ratios.

The observer is looking at the top of the pole. The angle BAC, so formed by the line of sight with the horizontal, is called the angle of elevation of the top of the pole from the eye of an observer. In the above figure, the line AC, is the line of sight as the observer is looking downwards from the top of the building at A towards the object at C.

From the above figure, if we want to find the height CD of the pole without actually measuring it, we need the following information: i Distance ED of the observer from the pole. Assuming that the above three conditions are known we can determine the height of the pole in the following way. By adding AE to BC, you will get the height of the pole. Some Applications of Trigonometry Class 10 Ex 9. Solution: Ex 9. Angle of Depression In the above figure, the line AC, is the line of sight as the observer is looking downwards from the top of the building at A towards the object at C.

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Trigonometry has wide application in solving problems related to real life situations. One of the best methods for the indirect measurement of length or height involve trigonometric rations.

Trigonometry is extensively used in geography, navigation, astronomy, etc. The knowledge of trigonometry is used to construct maps, determine the position of different islands in relation to the longitudes and latitudes. Horizontal Ray: A ray parallel to the surface of the Earth emerging from the eye of an observer is called a horizontal ray. Line of Sight: The line of sight or ray of vision is the line drawn from the eye of an observer to the point in the object viewed by the observer.

Angle of Elevation: The angle of elevation of the point viewed is the angle formed by the line of sight with the horizontal when the point being viewed is above the horizontal level. Angle of Depression: The angle of depression of a point on the object being viewed is the angle formed by the line of sight with the horizontal when the point is below the horizontal level. What is the angle of elevation of the sun? From the top of a 7 m high building, the angle of elevation of the top of a tower is 60 and the angel of depression of its foot is Find the height of the tower.

Two points A and B are on the same side of a tower and in the same straight line with its base. The angles of depression of these points from the top of the tower are 60 and 45 respectively. If the height of the tower is 15 m, then find the distance between these points.

Surveyors have used trigonometry for centuries. During the survey in , the highest mountain in the world was discovered. From a distance of over km, the peak was observed from six different stations.

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