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Surface Area and Volume Formulas Important
Last updated at May 29, 2018 by Teachoo
Maths Crash Course - Live lectures + all videos + Real time Doubt solving!
Example 7 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