Example 4 - Chapter 11 Class 9 Surface Areas and Volumes

Last updated at Dec. 13, 2024 by

Example 4 - Find surface area of a sphere of radius 7 cm - Examples

 

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Example 4 Find the surface area of a sphere of radius 7 cm. Given r = 7cm Surface Area of sphere = 4πr2 = 4 × 22/7 × 7 × 7 cm2 = 4 × 22× 1 × 7 cm2 = 616 cm2

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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