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Example 14 - The radius of a circular pipe is 10 cm. What length of

Example 14 - Chapter 11 Class 7 Perimeter and Area - Part 2

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Example 14 The radius of a circular pipe is 10 cm. What length of a tape is required to wrap once around the pipe (π = 3.14)? Here, Length of tape required = Circumference of pipe Radius of pipe = r = 10 cm Circumference of pipe = 2𝜋r = 2 × 3.14 × 10 = 2 × 314/100 × 10 = 2 × 314/10 = 628/10 = 62.8 cm ∴ Length of tape required = 62.8 cm Hence, 62.8 cm of tape is required to wrap once around the pipe

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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.