In a circle of diameter 42cm,if an arc subtends an angle of 60หš at the centre where π =22/7, then what will be the length of arc.

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Note : This is similar to Ex 12.2, 5 ( i ) of NCERT – Chapter 12 Class 10

Check the answer here https:// www.teachoo.com /1854/547/Ex-12.2--5---In-a-circle-of-radius-21-cm--an-arc-subtends-60/category/Ex-12.2/

 

  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

Transcript

Question 14 In a circle of diameter 42 cm, if an arc subtends an angle of 60หš at the centre where ๐œ‹ = 22/7, then what will be the length of arc.Length of Arc APB = ๐œƒ/360ร— (2๐œ‹๐‘Ÿ) = (60ยฐ)/(360ยฐ) ร— 2 ร—22/7 ร— 21 = 1/6 ร— 2 ร— 22/7 ร— 21 = 22 cm

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.