document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=33486>Question 33486</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In the diagram, the length of Arc AB is (3y-9)times pi.  What is the value of y?<BR>\n" );
document.write( "   The circle's center from a to b is 144 degrees and has a radius of 12.  \r<BR>\n" );
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document.write( "   It is hard to explain a question when you cant draw a picture. sorry </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #19916 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=19916\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The length of an arc, S is given by S=rA where r is the radius and A is the angle IN RADIANS:\r<BR>\n" );
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document.write( "So, we have 144 degrees. What is this in radians?\r<BR>\n" );
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document.write( "Start with one thing you NEED to learn: <BR>\n" );
document.write( "360 degree = 2 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi ALIGN=MIDDLE  ALT=\"pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians<BR>\n" );
document.write( "--> 1 degree = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%282%2Api%29%2F360+ ALIGN=MIDDLE  ALT=\"+%282%2Api%29%2F360+\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians<BR>\n" );
document.write( "--> 144 degrees = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+144%2A%28%282%2Api%29%2F360%29+ ALIGN=MIDDLE  ALT=\"+144%2A%28%282%2Api%29%2F360%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians\r<BR>\n" );
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document.write( "You can simplify this out a bit if you wish here:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+144%2A%28%28pi%29%2F180%29+ ALIGN=MIDDLE  ALT=\"+144%2A%28%28pi%29%2F180%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%284%2Api%29%2F5+ ALIGN=MIDDLE  ALT=\"+%284%2Api%29%2F5+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Right then, S=rA<BR>\n" );
document.write( "--> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+S+=+12%2A%284%2Api%29%2F5+ ALIGN=MIDDLE  ALT=\"+S+=+12%2A%284%2Api%29%2F5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+S+=+%2848%2Api%29%2F5+ ALIGN=MIDDLE  ALT=\"+S+=+%2848%2Api%29%2F5+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So, this is equivalent to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%283y-9%29%2Api+ ALIGN=MIDDLE  ALT=\"+%283y-9%29%2Api+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%2848%2Api%29%2F5+=+%283y-9%29%2Api+ ALIGN=MIDDLE  ALT=\"+%2848%2Api%29%2F5+=+%283y-9%29%2Api+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+48%2F5+=+3y-9+ ALIGN=MIDDLE  ALT=\"+48%2F5+=+3y-9+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+48+=+5%283y-9%29+ ALIGN=MIDDLE  ALT=\"+48+=+5%283y-9%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+48+=+15y-45+ ALIGN=MIDDLE  ALT=\"+48+=+15y-45+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+93+=+15y+ ALIGN=MIDDLE  ALT=\"+93+=+15y+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--> y = 6.2\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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