document.write( "Question 78065: 1. Find the length of a shorter leg of a right triangle if the longer leg is 10 miles more than the shorter leg and the hypotemuse is 10 miles less than twice the shorter leg.\r
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Algebra.Com's Answer #55969 by stanbon(75887)\"\" \"About 
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Find the length of a shorter leg of a right triangle if the longer leg is 10 miles more than the shorter leg and the hypotemuse is 10 miles less than twice the shorter leg.
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\n" ); document.write( "Let the length of the shorter leg be \"x\" miles.
\n" ); document.write( "Longer leg is \"x+10\".
\n" ); document.write( "Hypotenuse is \"2x-10\".
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\n" ); document.write( "EQUATION: Use Pythagoras to get:
\n" ); document.write( "x^2 + (x+10)^2= (2x-10)^2
\n" ); document.write( "x^2 + x^2+20x+100 = 4(x^2-10x+25)
\n" ); document.write( "2x^2+20x+100 = 4x^2-40x+100
\n" ); document.write( "2x^2-60x=0
\n" ); document.write( "2x(x-30)=0
\n" ); document.write( "x=30 (this is the length of the shorter leg)
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\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
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