document.write( "Question 107935: The diagonal of a rectangle is 2 ft longer than its length and 5 feet longer than its width. What are the dimensions of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #78676 by MathLover1(20849)\"\" \"About 
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The diagonal of a rectangle is \"2+ft\" longer than its \"length\" and \"5+ft\" longer than its \"width\".
\n" ); document.write( "What are the dimensions of the rectangle?\r
\n" ); document.write( "\n" ); document.write( "Since the \"diagonal\" divides rectangle into two \"right\"\"trianles\", we will use \"Pythagoras%27+\"\"Theorem+\" in order to find the dimensions of the rectangle.\r
\n" ); document.write( "\n" ); document.write( "In algebraic terms, \"a2+%2B+b2+=+c2\"where \"c\" is the hypotenuse ( in your case the \"diagonal\") while \"a\" and \"b+\"are the legs of the triangle (in your case the \"lenght\" and \"width\").\r
\n" ); document.write( "\n" ); document.write( "given:\r
\n" ); document.write( "\n" ); document.write( "\"c+=+a+%2B+2ft\" => \"a+=+c+%96+2ft\"\r
\n" ); document.write( "\n" ); document.write( "\"c+=+b+%2B+5ft\" => \"b+=+c+%96+5ft\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "we will substitute it in:\r
\n" ); document.write( "\n" ); document.write( "\"c%5E2+=+a%5E2+%2B+b%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5E2+=+%28c-2ft%29%5E2+%2B+%28c-5ft%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5E2+=+c%5E2+-4cft+%2B+4ft%5E2+%2B+c%5E2+%96+10cft+%2B+25ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5E2+=+2c%5E2+%96+14cft+%2B29ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5E2+-14cft+%2B+29ft%5E2+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5B1%2C2%5D=%2814+%2B-+sqrt+%2814%5E2+-4%2A1%2A29+%29%29+%2F+%282%2A1%29\"\r
\n" ); document.write( "\n" ); document.write( "We need only positive root\r
\n" ); document.write( "\n" ); document.write( "\"c%5B1%5D=%2814+%2B+sqrt+%2814%5E2+-4%2A1%2A29+%29%29+%2F+%282%2A1%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"c%5B1%5D=%2814+%2B+sqrt+%28196-116++%29%29+%2F+2\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5B1%5D=%2814+%2B+sqrt+%2880%29%29+%2F+2\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"c%5B1%5D=%2814+%2B+8.9%29+%2F+2\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5B1%5D=%2822.9%29+%2F+2\"\r
\n" ); document.write( "\n" ); document.write( "\"c%5B1%5D=%2811.45ft%29+\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"a+=+c+%96+2ft\"
\n" ); document.write( "=> \"a+=+11.45ft+%96+2ft+=+9.45ft\"\r
\n" ); document.write( "\n" ); document.write( "\"b+=+c+%96+5ft\"
\n" ); document.write( "\"b+=+11.45ft+%96+5ft\"
\n" ); document.write( "=> \"b+=+6.45ft\"\r
\n" ); document.write( "\n" ); document.write( "Check:\r
\n" ); document.write( "\n" ); document.write( "\"%2811.45%29%5E2+=+%289.45%29%5E2+%2B+%286.45%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"131.1025+=+89.3025+%2B+41.6025\"\r
\n" ); document.write( "\n" ); document.write( " \"131+=+131\"
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