document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=371043>Question 371043</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A circular pool is surrounded by a brick walkway 3 m wide. Find the radius of the pool if the area of the walkway is 198 m^2.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #264352 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=264352\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let the radius of the pool be x <BR>\n" );
document.write( "radius of pool + walkway = x+3<BR>\n" );
document.write( "..<BR>\n" );
document.write( "area of pool + walkway = pi*(x+3)^2<BR>\n" );
document.write( "area of pool = pi*x^2<BR>\n" );
document.write( "..<BR>\n" );
document.write( "area of walkway = 198 m^2<BR>\n" );
document.write( "pi(x+3)^2-pi*x^2= 198<BR>\n" );
document.write( "/pi<BR>\n" );
document.write( "(x+3)^2-x^2=198/pi<BR>\n" );
document.write( "x^2+6x+9-x^2=198/pi<BR>\n" );
document.write( "6x+9 = 63<BR>\n" );
document.write( "-9  -9<BR>\n" );
document.write( "6x=63-9<BR>\n" );
document.write( "6x=54<BR>\n" );
document.write( "x= 9m radius of the pool\r<BR>\n" );
document.write( "\n" );
document.write( "...<BR>\n" );
document.write( "m.ananth@hotmail.ca </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );