document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1031419>Question 1031419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If AB is a chord and P is a point on AB such that AP=8 cm, PB=5 and P is 3 cm from the centre of the circle, find the radius.\r<BR>\n" );
document.write( "\n" );
document.write( "how do i solve this problem? <BR>\n" );
document.write( "I think i need to use the chord theorem but i have no clue </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #646117 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=646117\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=mananth&illustration_name=radius.png\">\r<BR>\n" );
document.write( "\n" );
document.write( "OMP is a right triangle\r<BR>\n" );
document.write( "\n" );
document.write( "OP^2 + OM^2 + MP^2\r<BR>\n" );
document.write( "\n" );
document.write( "3^2= (2.5)^2+OM^2\r<BR>\n" );
document.write( "\n" );
document.write( "OM^2 = 3^2-2.5^2\r<BR>\n" );
document.write( "\n" );
document.write( "OM = 1.66\r<BR>\n" );
document.write( "\n" );
document.write( "OB = sqrt( OM^2+MB^2)\r<BR>\n" );
document.write( "\n" );
document.write( "= sqrt( 1.66^2+7.6^2)\r<BR>\n" );
document.write( "\n" );
document.write( "= 7.78 cm  the radius </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );