document.write( "Question 765200: The area of a rectangle is 5000 ft^2. The diagonal is 10 feet longer than the length. What are the dimensions of the rectangle rounded to the nearest foot.
\n" ); document.write( "The prompt says that this can be done on the calculator, but I can't wrap my head around it.
\n" ); document.write( "Any help would be appreciated!
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Algebra.Com's Answer #466008 by MathLover1(20849)\"\" \"About 
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The area of a rectangle is \"A=L%2AW=5000ft%5E2\". \r
\n" ); document.write( "\n" ); document.write( "The diagonal \"d\" is \"10ft\" longer than the length \"L\"\r
\n" ); document.write( "\n" ); document.write( "The diagonal \"d\" divides rectangle into two right angle triangles, and we can use Pythagorean theorem:\r
\n" ); document.write( "\n" ); document.write( "\"d%5E2=L%5E2%2BW%5E2\"\r
\n" ); document.write( "\n" ); document.write( "if \"d\" is \"10ft\" longer than the length \"L\", then \"d=L%2B10ft\"\r
\n" ); document.write( "\n" ); document.write( "so, substitute it in \"d%5E2=L%5E2%2BW%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"d=sqrt%28L%5E2%2BW%5E2%29\" and we are told that this is 10 feet longer than one side,\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%28L%5E2%2BW%5E2%29=L%2B10ft\"........square both sides\r
\n" ); document.write( "\n" ); document.write( "\"%28sqrt%28L%5E2%2BW%5E2%29%29%5E2=%28L%2B10ft%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"L%5E2%2BW%5E2=L%5E2%2B20Lft%2B10oft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"W%5E2=20Lft%2B100ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "go to \"A=L%2AW=5000ft%5E2\" and solve it for \"L\"\r
\n" ); document.write( "\n" ); document.write( "\"L=5000%2FW\"......plug it in \"W%5E2=20L%2B100\"\r
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\n" ); document.write( "\n" ); document.write( "\"W%5E2=20%285000%2FW%29%2B100\"\r
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\n" ); document.write( "\n" ); document.write( "\"W%5E2=%28100000%2FW%29%2B100\".....multiply by \"W\"\r
\n" ); document.write( "\n" ); document.write( "\"W%5E2%2AW=W%28100000%2FW%29%2B100W\"\r
\n" ); document.write( "\n" ); document.write( "\"W%5E2%2AW=cross%28W%29%28100000%2Fcross%28W%29%29%2B100W\"\r
\n" ); document.write( "\n" ); document.write( "\"W%5E3=100000%2B100W\"\r
\n" ); document.write( "\n" ); document.write( "\"W%5E3-100W-100000=0\"\r
\n" ); document.write( "\n" ); document.write( "\"W=47.134ft\"\r
\n" ); document.write( "\n" ); document.write( "now find \"L\"\r
\n" ); document.write( "\n" ); document.write( "\"L=5000ft%5E2%2FW\"\r
\n" ); document.write( "\n" ); document.write( "\"L=5000ft%5E2%2F47.134ft\"\r
\n" ); document.write( "\n" ); document.write( "\"L=106.08ft\"\r
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\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"A=L%2AW=5000ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"A=106.08ft%2A47.134ft=5000ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "if \"L=106.08ft\" then diagonal is \"d=106.08ft%2B10ft=116.08ft\"\r
\n" ); document.write( "\n" ); document.write( "check if \"d%5E2=L%5E2%2BW%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"%28116.08ft%29%5E2=%28106.08ft%29%5E2%2B%2847.134ft%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"13474.5664ft%5E2=11252.9664ft%5E2%2B2221.613956ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"13474.5664ft%5E2=13474.58+ft%5E2+\" rounded to whole number\r
\n" ); document.write( "\n" ); document.write( "\"13475ft%5E2=13475+ft%5E2+\"
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