document.write( "Question 260707: What is the best approximation of the perimeter of a right isosceles triangle if its hypotenuse is 12 units long? what is its area? \n" ); document.write( "

Algebra.Com's Answer #192055 by Fombitz(32388) $\"\"$ $\"About$

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For a right isoceles triangle,
\n" ); document.write( " $\"x%5E2%2Bx%5E2=12%5E2\"$
\n" ); document.write( " $\"2x%5E2=144\"$
\n" ); document.write( " $\"x%5E2=72\"$
\n" ); document.write( " $\"x=sqrt%2872%29=6sqrt%282%29\"$
\n" ); document.write( " $\"P=6sqrt%282%29%2B6sqrt%282%29%2B12=12sqrt%282%29%2B12\"$
\n" ); document.write( "or approximately
\n" ); document.write( " $\"P=28.97\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"A=%281%2F2%29bh=%281%2F2%29x%5E2=36\"$ \n" ); document.write( "

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