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Surface area?

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How can I calculate the surface area of a sphere with a radius of 3.6cm?
 Dec 15, 2013

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 #1
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The formula for the surface area of a sphere is A=4*pi*r^2 . So for this equation you would need to substitute "r" for 3.6 .

A=4*pi*3.6^2
A=12.566*12.96
A=162.85536
 Dec 15, 2013
 #2
avatar+118653 
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don't forget the units.
 Dec 16, 2013

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