document.write( "Question 662248: The visual shows the net of an open cube. The area of the net is 45 square centimetres, what is the length of one side of the cube? \n" ); document.write( "

Algebra.Com's Answer #412184 by KMST(5328) $\"\"$ $\"About$

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I imagine that by \"an open cube\" the problem means an open cube-shaped box, with 5 faces, but missing the lid.
\n" ); document.write( "If that net shows 5 squares, for 5 congruent faces of a cube,each having the same area, the surface area of each face is
\n" ); document.write( " $\"45cm%5E2%2F5=9cm%5E2\"$
\n" ); document.write( "The area of a face in a cube with side $\"x\"$ cm is $\"x%5E2\"$ $\"cm%5E2\"$ , so in this case
\n" ); document.write( " $\"x%5E2=9\"$ --> $\"x=sqrt%289%29\"$ --> $\"highlight%28x=3%29\"$
\n" ); document.write( "The side of the cube measures $\"highlight%283cm%29\"$ . \n" ); document.write( "

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