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Cory has a video game console in the shape of a cube. He says that since it's top surface has an area of 81 square inche, ithas a volume of 243 cubic inches. Matthias says that it has volume of 729 inches. Who is correct?Why?

 Nov 3, 2015
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The top surface is given by :

 

81  =   s^2    →   s   =  9  in

 

And the volume of a cube   = s^3  = 9^3   =  729 cubic inches

 

 

 

cool cool cool

 Nov 4, 2015

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