document.write( "Question 651402: The lengths of the sides of a right triangle are such that the shortest side is 7 inches shorter than the middle side, while the longest side (hypotenuse) is 1 in. longer than the middle side. Find the lengths of the sides.\r
\n" ); document.write( "\n" ); document.write( "I know to use A sq. + b sq. = c sq.
\n" ); document.write( "a= x-7 sq
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\n" ); document.write( "c= x+1 sq\r
\n" ); document.write( "\n" ); document.write( "I think I would also use sq. binomial rule as well. But I just can't get it to work. \r
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Algebra.Com's Answer #407655 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!
The lengths of the sides of a right triangle are such that the shortest side is 7 inches shorter than the middle side, while the longest side (hypotenuse) is 1 in. longer than the middle side. Find the lengths of the sides.\r
\n" ); document.write( "\n" ); document.write( "I know to use A sq. + b sq. = c sq.
\n" ); document.write( "a= x-7 sq
\n" ); document.write( "b= x sq
\n" ); document.write( "c= x+1 sq\r
\n" ); document.write( "\n" ); document.write( "I think I would also use sq. binomial rule as well. But I just can't get it to work. \r
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\n" ); document.write( "\n" ); document.write( "Let the length of the middle side be M
\n" ); document.write( "Then length of shortest side = M - 7
\n" ); document.write( "Length of longest side (hypotenuse) = M + 1\r
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\n" ); document.write( "\n" ); document.write( "Using pythagorean theorem formula, \"a%5E2+%2B+b%5E2+=+c%5E2\", where a and b are the lengths of the legs, and c is the length of the hypotenuse, we get: \r
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\n" ); document.write( "\n" ); document.write( "\"M%5E2+%2B+%28M+-+7%29%5E2+=+%28M+%2B+1%29%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"M%5E2+%2B+M%5E2+-+14M+%2B+49+=+M%5E2+%2B+2M+%2B+1\"\r
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\n" ); document.write( "\n" ); document.write( "\"M%5E2+%2B+M%5E2+-+M%5E2+-+14M+-+2M+%2B+49+-+1+=+0\"\r
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\n" ); document.write( "\n" ); document.write( "\"M%5E2+-+16M+%2B+48+=+0\"\r
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\n" ); document.write( "\n" ); document.write( "(M - 4)(M - 12) = 0\r
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\n" ); document.write( "\n" ); document.write( "M, or middle side = 4 in. (ignore as this would make shortest side, - 3 (4 - 7), and length CANNOT be negative\r
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\n" ); document.write( "\n" ); document.write( "M, or length of middle side = \"highlight_green%2812%29\" in.\r
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\n" ); document.write( "\n" ); document.write( "Length of shortest side = 12 - 7, or \"highlight_green%285%29\" in.\r
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\n" ); document.write( "\n" ); document.write( "Length of longest side = 12 + 1, or \"highlight_green%2813%29\" in.\r
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\n" ); document.write( "\n" ); document.write( "This is actually one of the special right triangles, or a pythagorean triple.\r
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\n" ); document.write( "\n" ); document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com
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