document.write( "Question 825253: The legs of a right triangle have lengths (in units) x+2 and x+6. The hypotenuse has lengths (in units) 2x. Find the perimeter of the triangle. \n" ); document.write( "
Algebra.Com's Answer #497158 by stanbon(75887)\"\" \"About 
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The legs of a right triangle have lengths (in units) x+2 and x+6. The hypotenuse has lengths (in units) 2x. Find the perimeter of the triangle.
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\n" ); document.write( "Use Pythagoras to get:
\n" ); document.write( "(2x)^2 = (x+2)^2 + (x+6)^2
\n" ); document.write( "4x^2 = x^2 +4x+4 + x^2 + 12x + 36
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\n" ); document.write( "2x^2 = 16x+40
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\n" ); document.write( "x^2 - 8x - 20 = 0
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\n" ); document.write( "Factor:
\n" ); document.write( "(x-10)(x+2) = 0
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\n" ); document.write( "Positive solution:
\n" ); document.write( "x = 10
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\n" ); document.write( "hypotenuse = 2x = 20
\n" ); document.write( "leg = x+2 = 12
\n" ); document.write( "leg = x+6 = 16
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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