document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1014254>Question 1014254</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A circular rug has an interior circle and two rings around the circle. <BR>\n" );
document.write( "a. Write a polynomial that represents the total area of the rug if the radius of the interior rug is r and each ring is 1 ft. from edge to edge. <BR>\n" );
document.write( "I got the answer to part a: Area= pi(4+4Runner+r^2) <BR>\n" );
document.write( "Could you please help me with part b?<BR>\n" );
document.write( "b. The interior circle of the rug has a diameter of 3 feet. What is the area of the rug? Leave your answer in terms of pi. Explain how you found your answer.<BR>\n" );
document.write( "Thank you!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #630554 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=630554\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The answer to part a: can be written as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area=+pi%284%2B4r%2Br%5E2%29+ ALIGN=MIDDLE  ALT=\"Area=+pi%284%2B4r%2Br%5E2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ,<BR>\n" );
document.write( "or even as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area=+pi%2Ar%5E2%2B4pi%2Ar%2B4pi ALIGN=MIDDLE  ALT=\"Area=+pi%2Ar%5E2%2B4pi%2Ar%2B4pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > ,<BR>\n" );
document.write( "but given <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r ALIGN=MIDDLE  ALT=\"r\"   DISABLED_style= \"max-width:90%; height:auto;\" >, it may be easier to calculate area using the equivalent expression<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area=+pi%28r%2B2%29%5E2 ALIGN=MIDDLE  ALT=\"Area=+pi%28r%2B2%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > .<BR>\n" );
document.write( " <BR>\n" );
document.write( "The radius of the interior circle is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=diameter%2F2=3ft%2F2=1.5ft ALIGN=MIDDLE  ALT=\"r=diameter%2F2=3ft%2F2=1.5ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > ,<BR>\n" );
document.write( "so, using the \"formula\" for area found above, the area of the rug in square feet, is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Area=+pi%281.5%2B2%29%5E2=+pi%2A3.5%5E2=12.25pi ALIGN=MIDDLE  ALT=\"Area=+pi%281.5%2B2%29%5E2=+pi%2A3.5%5E2=12.25pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > . </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );