document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=588140>Question 588140</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chord of a circle is 10mm. It is parallel to a tangent and bisects the radius drawn to the point of tangency(where the line and the circle touch). Find the circumference 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 #374392 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=374392\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A chord of a circle is 10mm.<BR>\n" );
document.write( " It is parallel to a tangent and bisects the radius drawn to the point of tangency(where the line and the circle touch).<BR>\n" );
document.write( " Find the circumference of the circle.<BR>\n" );
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document.write( "Draw this out and you can see two right triangles are formed where<BR>\n" );
document.write( "side 1 = 5 (half the chord)<BR>\n" );
document.write( "side 2 = .5r (half the radius<BR>\n" );
document.write( "hypot: = r<BR>\n" );
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document.write( "r^2 = (.5r)^2 + 5^2<BR>\n" );
document.write( "r^2 = .25r^2 = 25<BR>\n" );
document.write( "r^2 - .25r^2 = 25<BR>\n" );
document.write( ".75r^2 = 25<BR>\n" );
document.write( "r^2 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25%2F.75 ALIGN=MIDDLE  ALT=\"25%2F.75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r^2 = 33.33<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2833.33%29 ALIGN=MIDDLE  ALT=\"sqrt%2833.33%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r ~ 5.7735 is the radius<BR>\n" );
document.write( "Find the circumference<BR>\n" );
document.write( "c = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Api%2A5.7735 ALIGN=MIDDLE  ALT=\"2%2Api%2A5.7735\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "c = 36.276 is the circumference </SPAN>\n" );
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