document.write( "Question 818603: The diagonal of a square is 3 ft. long, what is its perimeter? \n" ); document.write( "
Algebra.Com's Answer #492663 by stanbon(75887)\"\" \"About 
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The diagonal of a square is 3 ft. long, what is its perimeter?
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\n" ); document.write( "Let each side of the square be \"x\"::
\n" ); document.write( "Equation:
\n" ); document.write( "2x^2 = 3^2
\n" ); document.write( "x^2 = (1/2)3^2
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\n" ); document.write( "x = 3/sqrt(2)
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\n" ); document.write( "Perimeter = 4x = 4(3/sqrt(2)) = 12sqrt(2)/2 = 6sqrt(2)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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