document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=91774>Question 91774</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PQR is an isosceles triangle such that QP=QR=13cm and the altitude PS=12cm. Find the length of PR. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #66642 by </B><A HREF=/tutors/aboutme.mpl?userid=mathispowerful><B>mathispowerful(115)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathispowerful><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=66642\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This problem can be solved by using Pythagorean-theorem twice.\r<BR>\n" );
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document.write( "First find QS:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=QS%5E2+=+QP%5E2+-+PS%5E2 ALIGN=MIDDLE  ALT=\"QS%5E2+=+QP%5E2+-+PS%5E2\"   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=QS%5E2+=+13%5E2+-+12%5E2+ ALIGN=MIDDLE  ALT=\"QS%5E2+=+13%5E2+-+12%5E2+\"   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=QS%5E2 ALIGN=MIDDLE  ALT=\"QS%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 25\r<BR>\n" );
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document.write( "QS = 5\r<BR>\n" );
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document.write( "Then RS = QR - QS = 13 - 5 = 8\r<BR>\n" );
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document.write( "PR = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28PS%5E2+%2B+RS%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28PS%5E2+%2B+RS%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "PR = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28144+%2B+64%29 ALIGN=MIDDLE  ALT=\"sqrt%28144+%2B+64%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "PR = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28208%29 ALIGN=MIDDLE  ALT=\"sqrt%28208%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "PR = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Asqrt%2813%29 ALIGN=MIDDLE  ALT=\"4%2Asqrt%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "or PR = 14.42 </SPAN>\n" );
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