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Atiksh Tomar
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Asked: 2020-10-29T05:32:00+00:00 In:

Find the area of a quadrant of a circle whose circumference is 22 cm.

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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:2

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

    1. Best Answer
      Find the area of a quadrant of a circle whose circumference is 22 cm.

      Let the radius of circle = r
      Circumference = 22 cm
      Therefore, 2πr = 22
      ⇒ r = 22/2π = 11/π
      Quadrant of circle subtends an angle of 90° at the center.
      Therefore, the area of quadrant
      = 90°/360° × πr²
      = 1/4 × π(11/π)² = 1/4 × π × 11/π = 121/4π = (121 × 7)/(4 × 22) = 77/8 cm²

      See here for better understanding of this Answer😇👇

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    2. 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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