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

Revise NCERT Solutions for CBSE Class 10 Mathematics Chapter 9 Some Applications of Trigonometry to hone your problem-solving skills to ace the board exam. When you practise the textbook solutions, you relearn the methods for applying trigonometry concepts. Solve problems wherein you must calculate the distance between two objects such as ships. 

Learn to calculate the height of a pole or find the distance travelled by a balloon based on the data given in your textbook questions. For effective Maths learning, check your answers with the steps given by our subject experts in the CBSE Class 10 Maths textbook solutions. Also, check our Maths resources such as sample papers, past years’ papers etc.

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Chapter 9 - Some Applications of Trigonometry Exercise Ex. 9.1

Solution 1
Solution 2



Let AC be the original tree and A'B be the broken part which makes an angle of 30o with the ground.

Solution 3

In the two figures, AC and PR are the slides for younger and elder children respectively

Solution 4
Solution 5


Let A be the position of the kite and the string is tied to point C on ground.

Solution 6
Solution 7


Let BC be the building, AB be the transmission tower, and D be the point on ground from where elevation angles are to be measured.

Solution 8


Let AB be the statue, BC be the pedestal and D be the point on ground from where elevation angles are to be measured.

Solution 9
Solution 10
Solution 11
Solution 12
Solution 13


Let AB be the lighthouse and the two ships be at point C and D respectively.

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Solution 14
Solution 15


Let AB be the tower. C is the original position of the car which changes to D after six seconds.

Solution 16


Let AQ be the tower and R, S respectively be the points which are 4m, 9m away from base of tower.


As the height can not be negative, the height of the tower is 6 m.