document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234482>Question 234482</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a circular island of diameter 100 yards is surrounded by a concentric circular moat whose area equals that of the island .which of the following best approximates the width of the moat ?\r<BR>\n" );
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document.write( "a) 20 yards   b) 30 yards   c) 50 yards   d)70 yards     e) 100 yards </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172923 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=172923\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area=pir^2=3.14*(100/2)^2=3.14*50^2=3.14*2,500=7,850 yds.^2 <BR>\n" );
document.write( "2*7,850=pir^2<BR>\n" );
document.write( "15,700=3.14*r^2<BR>\n" );
document.write( "r*2=15,700/3.14<BR>\n" );
document.write( "r^2=5,000<BR>\n" );
document.write( "x=sqrt5,000<BR>\n" );
document.write( "x=70.71 yds. is the total radius of the island & the moat.<BR>\n" );
document.write( "Width of the moat=50+x=70.71=20.71 yds. is the width of the moat.<BR>\n" );
document.write( "Answer A) </SPAN>\n" );
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