NCERT Solutions for Class 10 Maths Chapter 9
Important NCERT Questions
SOME APPLICAT IONS OF TRIGONOMETRY
(Height and Distance)
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 9.1
Page No:204
Questions No:5
A kite is flying at a height of 60 m above the ground. The string attached to the kite is temporarily tied to a point on the ground. The inclination of the string with the ground is 60°. Find the length of the string, assuming that there is no slack in the string.
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Let K be the Kite and P is the point where the string is tied on the ground.
In ΔKLP,
KL/KP = sin60°
⇒ 60/KP = √3/2
⇒ AB = 120/√3 = 120√3/3 = 40√3
Hence, the lenght of the string is 40√3 m.
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NCERT Solutions for class 10 Maths Exercise 9.1 all questions in Hindi Medium