document.write( "Question 390551: What is the length of a diagonal of a sqaure with a perimeter of 28 centimeters? \n" ); document.write( "
Algebra.Com's Answer #276964 by stanbon(75887)\"\" \"About 
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What is the length of a diagonal of a square
\n" ); document.write( "with a perimeter of 28 centimeters?
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\n" ); document.write( "Perimeter of a square = 4s where s is the length of each side.
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\n" ); document.write( "4s = 28
\n" ); document.write( "s = 7 cm (length of each side)
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\n" ); document.write( "Note: diagonal^2 = side^2 + side^2
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\n" ); document.write( "d^2 = 2s^2
\n" ); document.write( "d^2 = 2*49
\n" ); document.write( "d = 7*sqrt(2) cm
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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