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Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


Ex 9.2, 1 Find the circumference of the circles with the following radius: (๐‘‡๐‘Ž๐‘˜๐‘’ ๐œ‹=22/7) (b) 28 mmRadius = r = 28 mm Circumference = 2๐œ‹r = 2 ร— ๐Ÿ๐Ÿ/๐Ÿ• ร— 28 = 2 ร— 22 ร— 4 = 44 ร— 4 = 176 mm โˆด Circumference of circle is 176 mm

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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 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.