lolidontknow36 lolidontknow36

24-06-2020
Mathematics

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work out the surface area of a sphere please help if u get it correct i’ll give h brainlest

work out the surface area of a sphere please help if u get it correct ill give h brainlest class=

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Stephen46 Stephen46

24-06-2020

Answer:

Surface area of sphere = 4πr²

r = radius

and radius = diameter/2

radius = 13/2

= 6.5cm

Surface area = 4 × π × 6.5

= 26 × π

= 81.68

= 81.7cm²

Hope this helps.

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