document.write( "Question 257384: find the diagonal of a square with perimeter 28 meters \n" ); document.write( "
Algebra.Com's Answer #189311 by palanisamy(496)\"\" \"About 
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Let the side of the given square be a.
\n" ); document.write( "Then its perimeter is 4a = 28
\n" ); document.write( " a = 28/4
\n" ); document.write( " a = 7
\n" ); document.write( "The length of one diagonal = 7*sqrt2
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