document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=204772>Question 204772</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/1405802111/algebrahomeworkh>Longman Mathematics</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A piece of wire 30com long is cut into two pieces. One of these is bent into a circle and the other is bent into a square enclosing the circle. What is the diameter of the circle? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #154541 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=154541\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A piece of wire 30com long is cut into two pieces. <BR>\n" );
document.write( "One of these is bent into a circle and the other is bent into a square enclosing the circle. <BR>\n" );
document.write( "What is the diameter of the circle?<BR>\n" );
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document.write( "The diameter of the circle is also the side of the square<BR>\n" );
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document.write( "Let x = the diameter and the side of the square<BR>\n" );
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document.write( "Circum + perimeter = 30<BR>\n" );
document.write( "pi*x + 4x = 30<BR>\n" );
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document.write( "4.71416x = 30<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2F4.71416 ALIGN=MIDDLE  ALT=\"30%2F4.71416\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 4.2 cm is the diameter of the circle<BR>\n" );
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document.write( "Check<BR>\n" );
document.write( "circum: 4.2*pi = 13.195<BR>\n" );
document.write( "perime: 4 * 4.2= 16.80<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "wire length  = 29.995 ~ 30 </SPAN>\n" );
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