document.write( "Question 635678: What is the formula for? Find the length of the equal sides of a right-angled isosceles triangle if the length of its hypotenuse is 40cm. \n" ); document.write( "

Algebra.Com's Answer #400479 by reviewermath(1029) $\"\"$ $\"About$

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Use Pythagorean Theorem:
\n" ); document.write( " $\"x%5E2+%2B+x%5E2+=+40%5E2\"$
\n" ); document.write( " $\"2x%5E2+=+1600\"$
\n" ); document.write( " $\"x%5E2+=+800\"$
\n" ); document.write( " $\"x+=+20%2Asqrt%282%29\"$
\n" ); document.write( "The length of each leg is equal to $\"highlight%2820%2Asqrt%282%29%29\"$ cm. \n" ); document.write( "

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