Example 10 - Chapter 9 Class 7 Perimeter and Area

Last updated at August 14, 2026 by

Example 10 - Find the perimeter of the given shape (Fig 11.32) - Examples

part 2 - Example 10 - Examples - Serial order wise - Chapter 9 Class 7 Perimeter and Area
part 3 - Example 10 - Examples - Serial order wise - Chapter 9 Class 7 Perimeter and Area

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Transcript

Example 10 Find the perimeter of the given shape (Fig 11.32) (Take Ο€ = 22/7).Here, Perimeter of given shape = 4 Γ— Length of curved blue line = 4 Γ— Circumference of half circle Let’s find circumference of half circle Circumference of half circle Diameter = 14 cm Radius = r = π·π‘–π‘Žπ‘šπ‘’π‘‘π‘’π‘Ÿ/2 = 14/2 = 7 cm Circumference of half circle = 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 half circle = 4 Γ— 22 = 88 cm Hence, perimeter of given shape is 88 cm

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