document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=169634>Question 169634</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A circular pool is 46 feet in diameter and has a flag stone walk around it that is 4 feet wide. Find the area of the walk. Express the answer in terms of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi ALIGN=MIDDLE  ALT=\"pi\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #125012 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=125012\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A circular pool is 46 feet in diameter and has a flag stone walk around it that is 4 feet wide. Find the area of the walk. Express the answer in terms of pie.<BR>\n" );
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document.write( "Adding 4 ft to both sides gives an outside diameter of the walk of 54 ft.<BR>\n" );
document.write( "The area of the walk is the area of a 54 ft dia circle minus the area of the pool.<BR>\n" );
document.write( "Using the radii is simpler, they're 27 ft and 23 ft.  So it's<BR>\n" );
document.write( "pi*27^2 - pi*23^2<BR>\n" );
document.write( "= 729pi - 529pi<BR>\n" );
document.write( "= 200*pi sq ft.<BR>\n" );
document.write( "BTW, it's pi, the Greek letter, not pie.<BR>\n" );
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