document.write( "Question 200345: Find the exact length of the side of a square whose diagonal is 3 feet. \n" ); document.write( "

Algebra.Com's Answer #150647 by RAY100(1637) $\"\"$ $\"About$

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The diagonal of the square makes a triangle that is ,,45 - 45 - 90 degrees,
\n" ); document.write( "with sides,,,,,1-1-sqrt2
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\n" ); document.write( "sqrt2 / 3 = 1/x
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\n" ); document.write( "cross multiply
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\n" ); document.write( "xsqrt2 =3
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\n" ); document.write( "x=3/sqrt2 = 3sqrt2 / 2 = 2.12,,,,,,,therefore side = (3/2) sqrt2
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\n" ); document.write( "sqrt(2.12^2 +2.12^2) = 3,,,,,ok \n" ); document.write( "

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