document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1138233>Question 1138233</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chord 8mm long is formed by an angle of 45degrees subtended at the centre of a circle. Find the radius 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 #756063 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=756063\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Isosceles Triangle, angles 45, 22.5, 22.5 degrees;<BR>\n" );
document.write( "The side 8 mm is opposite the 45 degree angle.<BR>\n" );
document.write( "You want length of either of the congruent sides.<BR>\n" );
document.write( "Use Law Of Sines, unless you can find another way.\r<BR>\n" );
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document.write( "in case it helps,  22.5 degrees is  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2F8 ALIGN=MIDDLE  ALT=\"pi%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28pi%2F8%29=sqrt%282-sqrt%282%29%29%2F2 ALIGN=MIDDLE  ALT=\"sin%28pi%2F8%29=sqrt%282-sqrt%282%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "You already know  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%28pi%2F4%29=sqrt%282%29%2F2 ALIGN=MIDDLE  ALT=\"sin%28pi%2F4%29=sqrt%282%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Radius:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28sqrt%282-sqrt%282%29%29%29%2F2%29%2816%2Fsqrt%282%29%29 ALIGN=MIDDLE  ALT=\"%28%28sqrt%282-sqrt%282%29%29%29%2F2%29%2816%2Fsqrt%282%29%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=4%2Asqrt%282%29%2Asqrt%282-sqrt%282%29%29 ALIGN=MIDDLE  ALT=\"4%2Asqrt%282%29%2Asqrt%282-sqrt%282%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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