document.write( "Question 498016: A box with a square base and no top is to be made from a square piece of cardboard by cutting 4 inch squares from each corner and folding up the sides. The box is to hold 100 in cubed. How big a piece of cardboard is needed. \n" ); document.write( "
Algebra.Com's Answer #336973 by cleomenius(959)\"\" \"About 
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The volume will be L*W*H
\n" ); document.write( "We are cutting 4 inches from each corner, so the length and width will each be
\n" ); document.write( "x - 8.
\n" ); document.write( "The height will be 4.
\n" ); document.write( "100 = 4* (x - 8)* (x - 8)
\n" ); document.write( "25 = (x - 8)^2
\n" ); document.write( "5 = x - 8
\n" ); document.write( "13 inches= x.
\n" ); document.write( "The piece of cardboard needed will be 13 by 13 inches.
\n" ); document.write( "Cleomenius.
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