Chapter 9 Some Applications of Trigonometry - Ncert Solutions for Class 10 Mathematics CBSE

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Chapter 9 - Some Applications of Trigonometry Excercise Ex. 9.1

Solution 1
Solution 2


Let AC be the original tree and 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.