Ex 9.2, 2 (b) - Chapter 9 Class 7 Perimeter and Area

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Ex 9.2, 2 - Find the area of the circle (b) diameter = 49 m - Teachoo - Ex 9.2

part 2 - Ex 9.2, 2 (b) - Ex 9.2 - Serial order wise - Chapter 9 Class 7 Perimeter and Area

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Ex 9.2, 2 Find the area of the following circles, given that: (b) diameter = 49 mDiameter = 21 cm Radius = r = 𝐷𝑖𝑎𝑚𝑒𝑡𝑒𝑟/2 = 𝟒𝟗/𝟐 m Now, Area of circle = 𝜋 r2 = 𝟐𝟐/𝟕 × (𝟒𝟗/𝟐)^𝟐 = 22/7 × 49/2 × 49/2 = 11/7 × 49/1 × 49/2 = 11/1 × 7 × 49/2 = (77 × 49)/2 = 𝟑𝟕𝟕𝟑/𝟐 = 1886.5 m2 ∴ Required area is 1886.5 m2

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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