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if the surface area of a cube is 48 square inches,what is the area, in square inches, of one of the faces?

 Jan 5, 2015

Best Answer 

 #1
avatar+21641 
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If the length of one side of a cube is  x  then the area of that side is  x².

Since a cube has 6 sides, the total surface area is  6x².

If the total surface area is  48     --->     6x²  =  48

       Divide by 6:                                      x²  =  8

       Find the square root:                          x  =  √8

 Jan 5, 2015
 #1
avatar+21641 
+5
Best Answer

If the length of one side of a cube is  x  then the area of that side is  x².

Since a cube has 6 sides, the total surface area is  6x².

If the total surface area is  48     --->     6x²  =  48

       Divide by 6:                                      x²  =  8

       Find the square root:                          x  =  √8

geno3141 Jan 5, 2015

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