document.write( "Question 436154: A holding pen for cattle must be square and have a diagonal length of 140 meters.\r
\n" ); document.write( "\n" ); document.write( "Find the length of a side of the pen?\r
\n" ); document.write( "\n" ); document.write( "Find the area of the pen?\r
\n" ); document.write( "\n" ); document.write( "(An eaxact answer usings radicals as needed)
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Algebra.Com's Answer #301757 by mananth(16946)\"\" \"About 
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Diagonal of pen = 140 \r
\n" ); document.write( "\n" ); document.write( "length of side of square = x
\n" ); document.write( "by pythagoras theorem
\n" ); document.write( "x^2+x^2= 140
\n" ); document.write( "2x^2=140
\n" ); document.write( "x^2=70
\n" ); document.write( "\"x=+sqrt%2870%29\"
\n" ); document.write( "x= 8.36 m\r
\n" ); document.write( "\n" ); document.write( "Area = \"sqrt%2870%29%2Asqrt%2870%29\"
\n" ); document.write( "Area = 70 sq.m
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