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:203

Questions No:1

# A circus artist is climbing a 20 m long rope, which is tightly stretched and tied from the top of a vertical pole to the ground. Find the height of the pole, if the angle made by the rope with the ground level is 30°.

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Get here all the solutions of class 10 Maths Exercise 9.1

NCERT Solutions for class 10 Maths Exercise 9.1 all questions in Hindi Medium

In the given figure, AB is pole and AC is rope.

In ΔABC,

AB/AC = sin30⁰ ⇒ AB/20 = 1/2 ⇒ AB = 20/2 = 10

Hence, the height of the pole is 10 m.