document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=11821>Question 11821</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am not sure were this question belongs but I need an algebraic expression that give the area of a circle witha circumfernce c.  Here is the kicker I can't have any equal signs (=) or have diameter (d) in any part of the answer.\r<BR>\n" );
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document.write( "The only hint I have to go off of is Hint: The circumference of a circle with radius r is 2*pi*r, and its area is  pi*r^2.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #6037 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=6037\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=+2%2Api%2Ar ALIGN=MIDDLE  ALT=\"C=+2%2Api%2Ar\"   DISABLED_style= \"max-width:90%; height:auto;\" >  and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=+pi%2Ar%5E2 ALIGN=MIDDLE  ALT=\"A=+pi%2Ar%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You want a formula for the Area in terms of the Circumference C.\r<BR>\n" );
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document.write( "So, solve for r in the first equation, by dividing both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Api ALIGN=MIDDLE  ALT=\"2%2Api\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C%2F%282%2Api%29+=+%282%2Api%2A+r%29%2F%282%2Api%29 ALIGN=MIDDLE  ALT=\"C%2F%282%2Api%29+=+%282%2Api%2A+r%29%2F%282%2Api%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=+C%2F%282%2Api%29 ALIGN=MIDDLE  ALT=\"r=+C%2F%282%2Api%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Substitute this into the second formula, and you will have:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+pi+%2A+r%5E2 ALIGN=MIDDLE  ALT=\"A+=+pi+%2A+r%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+pi+%2A+%28C%2F%282%2Api%29%29%5E2 ALIGN=MIDDLE  ALT=\"A+=+pi+%2A+%28C%2F%282%2Api%29%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+pi+%2A+%28C%5E2%29%2F+%284%2Api%5E2%29 ALIGN=MIDDLE  ALT=\"A+=+pi+%2A+%28C%5E2%29%2F+%284%2Api%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Divide out the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi ALIGN=MIDDLE  ALT=\"pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > factor \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+%28C%5E2%29+%2F%284%2Api%29+ ALIGN=MIDDLE  ALT=\"A+=+%28C%5E2%29+%2F%284%2Api%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "I suppose without any equal signs the final answer is this: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28C%5E2%29%2F%284%2Api%29 ALIGN=MIDDLE  ALT=\"%28C%5E2%29%2F%284%2Api%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "R^2 at SCC<BR>\n" );
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