document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=485875>Question 485875</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Rays PQ and QR are perpendicular. Point S lies in the interior of angle PQR. If m angle PQS =4+7a and m angle SQR =9+4a, find m angle PQS and m angle SQR.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #332482 by </B><A HREF=/tutors/aboutme.mpl?userid=cleomenius><B>cleomenius(959)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=cleomenius><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=cleomenius><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=332482\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The lines are perpendicular, so angle PQR is 90 degrees.<BR>\n" );
document.write( "Therefore, set an equation 4 + 7a + 9 + 4a = 90 degrees.<BR>\n" );
document.write( "13 + 11a = 90 degrees.<BR>\n" );
document.write( "11a = 77 degrees.<BR>\n" );
document.write( "a = 7 degrees.<BR>\n" );
document.write( "7 * 7 = 49 + 4 = 53<BR>\n" );
document.write( "7 * 4 = 28 + 9 = 37 <BR>\n" );
document.write( "37 + 53 = 90.<BR>\n" );
document.write( "Cleomenius. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );