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  1. Chapter 11 Class 7 Perimeter and Area
  2. Serial order wise

Transcript

Example 15 Find the perimeter of the given shape (Fig 11.32) (Take Ο€ = 22/7). Here, Perimeter of given shape = 4 Γ— Circumference of semicircle Let’s find circumference of semi-circle Circumference of semicircle Diameter = 14 cm Radius = r = π·π‘–π‘Žπ‘šπ‘’π‘‘π‘’π‘Ÿ/2 = 14/2 = 7 cm Circumference of semicircle = 1/2 Γ— Circumference of circle = 1/2 Γ— 2πœ‹r = πœ‹r = 22/7 Γ— 7 = 22 cm Now, Perimeter of given shape = 4 Γ— Circumference of semicircle = 4 Γ— 22 = 88 cm Hence, perimeter of given shape is 88 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.