document.write( "Question 1115066: A guy wire is fastened 6 metres from the base of a flagpole and makes angle 30° with the ground. Determine the length of the guy wire and how far up the flagpole it is fastened. \n" ); document.write( "
Algebra.Com's Answer #729964 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\"sin%2830%29=1%2F2\" and \"cos%2830%29=sqrt%283%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "If r is the length of the guy wire (make drawing to see everything),
\n" ); document.write( "then \"cos%2830%29=6%2Fr\"\r
\n" ); document.write( "\n" ); document.write( "\"r%2F6=2%2Fsqrt%283%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=12%2Fsqrt%283%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=%2812%2Fsqrt%283%29%29%28sqrt%283%29%2Fsqrt%283%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=12%2Asqrt%283%29%2F3\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28r=4%2Asqrt%283%29%29\"-----length of guy wire.
\n" ); document.write( "and Pythagorean theorem could be used for finding the height of pole...\r
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\n" ); document.write( "\n" ); document.write( "Also recognize, the triangle formed is a special 30-60-90 right triangle. Long leg is 6 meters. Let x be the short leg (height of the flag pole). The wire is then 2x.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B6%5E2=%282x%29%5E2\"
\n" ); document.write( "-
\n" ); document.write( "\"x%5E2%2B36=4x%5E2\"
\n" ); document.write( "\"3x%5E2=36\"
\n" ); document.write( "\"x%5E2=12\"
\n" ); document.write( "\"x=sqrt%282%2A2%2A3%29\"
\n" ); document.write( "\"highlight%28x=2%2Asqrt%283%29%29\"------height
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\n" ); document.write( "\"highlight%284%2Asqrt%283%29%29\"-------guy wire
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