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Question 25 - CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic - Solutions of Sample Papers for Class 10 Boards

Last updated at Dec. 16, 2024 by Teachoo

Find the area of circle whose circumference is 22 cm.

 

Note : This is similar to Ex 12.2, 2 of NCERT – Chapter 12 Class 10

Check the answer here https://www.teachoo.com/1851/547/Ex-12.2--2---Find-area-of-a-quadrant-whose-circumference-is-22/category/Ex-12.2/

Transcript

Question 25 Find the area of circle whose circumference is 22 cm. Given that Circumference = 2πr 22 = 2πr 22 = 2 × 22/7 × r 22 × 1/2×(7 )/22 = r 7/2 = r r = 7/2 cm Now, Area of circle = πr2 = 22/7×(7/2)^2 = 22/7×(7 × 7)/(2 × 2) = 11/1×7/2 = 77/2 = 38.5 cm2
  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

    3. CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo