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Atiksh Tomar
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Asked: 2020-10-29T05:31:21+00:00 In:

The length of the minute hand of a clock is 14 cm. Find the area swept by the minute hand in 5 minutes.

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NCERT Solutions for Class 10 Maths Chapter 12
Important NCERT Questions
Areas Related To Circles Class,
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 12.2
Page No:230
Questions No:3

2020-2021areas related to circles classcbsechapter 12class10mathematicsncert
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    2 Answers

    1. Get Hindi Medium and English Medium NCERT Solution for Class 10 Maths to download.
      Please follow the link to visit website for first and second term exams solutions.
      https://www.tiwariacademy.com/ncert-solutions/class-10/maths/chapter-12/

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    2. Best Answer
      The length of the minute hand of a clock is 14 cm. Find the area swept by the minute hand in 5 minutes.

      We know that, the minute hand makes an angle of 360° in one hour.
      Hence, angle formed in 5 minutes
      = 360°/60° x 5 = 30°
      Therefore, area swept be the minute hand in 5 minutes.
      = Area of sector of angle 30°
      = 30° x πr²
      = 1/12 x π(14) ²
      = 1/12 x 22/7 x 14 x 14
      = 154/3 cm²

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