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Example 12 - What is the circumference of a circle of diameter 10 cm

Example 12 - Chapter 11 Class 7 Perimeter and Area - Part 2

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Example 12 What is the circumference of a circle of diameter 10 cm (Take Ο€ = 3.14)? Diameter = 10 cm Radius = r = π·π‘–π‘Žπ‘šπ‘’π‘‘π‘’π‘Ÿ/2 = 10/2 = 5 cm Circumference = 2πœ‹r = 2 Γ— 3.14 Γ— 5 = 3.14 Γ— 2 Γ— 5 = 314/100 Γ— 10 = 314/10 = 31.4 cm ∴ Circumference of circle is 31.4 cm

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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.