document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=290931>Question 290931</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chord that is 15 cm long is 20 cm from the centre of a circle. Find the length of the radius?? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #210518 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=210518\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A chord that is 15 cm long is 20 cm from the centre of a circle.<BR>\n" );
document.write( " Find the length of the radius??<BR>\n" );
document.write( ":<BR>\n" );
document.write( "The 20 cm line bisects the chord, and you have a right triangle<BR>\n" );
document.write( "r^2 = 7.5^2 + 20^2<BR>\n" );
document.write( "r^2 = 56.25 + 400<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28456.25%29 ALIGN=MIDDLE  ALT=\"sqrt%28456.25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = 21.36 cm is the radius </SPAN>\n" );
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