document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1179987>Question 1179987</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the exact diameter in centimetres of the largest semi-circle that could be made from 1m of wire? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #809571 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=809571\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The circumference of a circle is pi times the diameter; half the circumference is (pi/2) times the diameter.<br><BR>\n" );
document.write( "If that half circumference is 1m, then<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28pi%2F2%29%28d%29=1 ALIGN=MIDDLE  ALT=\"%28pi%2F2%29%28d%29=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=1%2F%28pi%2F2%29=2%2Fpi ALIGN=MIDDLE  ALT=\"d=1%2F%28pi%2F2%29=2%2Fpi\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "And the answer is as shown by the other tutor.<br><BR>\n" );
document.write( "That answer uses the interpretation that the \"semi-circle\" being formed is an open figure, consisting of only the curved part of the semicircle.<br><BR>\n" );
document.write( "Another possible interpretation is that the figure being formed is a closed semi-circle, including both the curved part and the diameter.  Of course that will give a different answer.<br><BR>\n" );
document.write( "If the semicircle to be formed is a closed figure, then<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28pi%2F2%29d%2Bd=1 ALIGN=MIDDLE  ALT=\"%28pi%2F2%29d%2Bd=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28pi%2F2%29%2B1%29d=1 ALIGN=MIDDLE  ALT=\"%28%28pi%2F2%29%2B1%29d=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+1%2F%28%28pi%2F2%29%2B1%29 ALIGN=MIDDLE  ALT=\"d+=+1%2F%28%28pi%2F2%29%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Note that the calculations shown for both interpretations are in meters; since the question asks for an answer in centimeters, you need to do a simple conversion of units.<br><BR>\n" );
document.write( " </SPAN>\n" );
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