document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=747497>Question 747497</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a chord of a circle measures 24 cm.and its distance from the centre is 4 cm.then the radius of the circle is (in cm.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #454960 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=454960\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a Pythagorean problem.<BR>\n" );
document.write( "Draw a line from the circle's centre<BR>\n" );
document.write( "to the chord so that the chord is split<BR>\n" );
document.write( "in two equal pieces (bisected).<BR>\n" );
document.write( "This gives you a right angled triangle<BR>\n" );
document.write( "complete with the radius that forms <BR>\n" );
document.write( "the hypotenuse.<BR>\n" );
document.write( "The distance from the centre to the chord<BR>\n" );
document.write( "is one side of the triangle.(4 cm.)<BR>\n" );
document.write( "and the other side is halve the chord (12 cm)<BR>\n" );
document.write( "4^2 + 12^2 = radius^2<BR>\n" );
document.write( "radius^2 = 160<BR>\n" );
document.write( "radius = square root of 160<BR>\n" );
document.write( "       = 12.7 (1 decimal place) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );