1. Chapter 9 Class 7 Perimeter and Area
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Example 11 - Chapter 9 Class 7 Perimeter and Area

Last updated at Dec. 16, 2024 by Teachoo

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Example 11 Sudhanshu divides a circular disc of radius 7 cm in two equal parts. What is the perimeter of each semicircular shape disc? (Use π = 22/7)Now, Perimeter of semicircle = Length of semicircle part + Length of AB Length of semicircle part Radius = r = 7 cm Length of semicircle part = 1/2 × Circumference of circle = 𝟏/𝟐 × 2𝜋r = 𝜋 r = 22/7 × 7 = 22 cm Length of AB AB = 2 × Radius = 2 × 7 = 14 cm Thus, Perimeter of semicircle = Length of semicircle part + Length of AB = 22 + 14 = 36 cm ∴ Perimeter is 36 cm
  1. Chapter 9 Class 7 Perimeter and Area
  2. Serial order wise

    3. Examples

    Area of Square and Rectangles - Worksheet →
Area of Square and Rectangles - Worksheet →
Chapter 9 Class 7 Perimeter and Area
Serial order wise

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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 14 years. He provides courses for Maths, Science and Computer Science at Teachoo