document.write( "Question 1202538: Ella's computer monitor has a 20-inch screen, which means that the length of the diagonal of the screen is 20 inches. There is a 1-inch margin along the four sides of the screen.
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Algebra.Com's Answer #837453 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "Ella's computer monitor has a 20-inch screen, which means that the length of the diagonal
\n" ); document.write( "of the screen is 20 inches. There is a 1-inch margin along the four sides of the screen.
\n" ); document.write( "The monitor can be laid flat so that it just fits into a box that is 11 inches wide.
\n" ); document.write( "How long is the box?
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document.write( "From the problem, we conclude that one of the two dimensions of the screen is \r\n" );
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document.write( "      11 - 1 - 1 = 9 inches.\r\n" );
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document.write( "Hence,  applying the Pythagoras, we find that the other dimension of the screen is   =  = 17.86 inches (rounded).\r\n" );
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document.write( "It tells us that the corresponding dimension of the box is 17.86 + 1 + 1 = 19.86 inches.\r\n" );
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document.write( "Since this dimension is greater than 11 inches, we have every reason to call this dimension\r\n" );
document.write( "as \"the length of the box\".\r\n" );
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document.write( "ANSWER.  The length of the box is 19.86 inches.\r\n" );
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