document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=207633>Question 207633</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, I am a junior struggling with her summer homework.<BR>\n" );
document.write( "Here is the question:<BR>\n" );
document.write( "An arc of a circle has a measure of 80 degrees and a length of 88pi centemeters. What is the diameter of the circle?\r<BR>\n" );
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document.write( "Please help! <BR>\n" );
document.write( "Thanks a lot! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #157023 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=157023\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An arc of a circle has a measure of 80 degrees and a length of 88pi centemeters. What is the diameter of the circle? <BR>\n" );
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document.write( "The entire circle, 360 degs, has a circumference of 2pi*r<BR>\n" );
document.write( "80 degs is 80/360 of the circumference, = 2/9.<BR>\n" );
document.write( "So, 2pi*r*2/9 = 88pi<BR>\n" );
document.write( "4pi*r/9 = 88pi<BR>\n" );
document.write( "r/9 = 22<BR>\n" );
document.write( "r = 198 cm<BR>\n" );
document.write( "dia = 396 cm\r<BR>\n" );
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