document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=958496>Question 958496</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The figure shows a sector with radius r and angle &#952; in radians. The total perimeter of the sector is 85 cm. <BR>\n" );
document.write( "(a) Express &#952; as a function of r. <BR>\n" );
document.write( "theta =   \r<BR>\n" );
document.write( "\n" );
document.write( "(b) Express the area of the sector as a (quadratic) function of r. <BR>\n" );
document.write( "area =   cm2 \r<BR>\n" );
document.write( "\n" );
document.write( "(c) For what radius r is the area a maximum? (As usual, decimal approximations will be marked incorrect) <BR>\n" );
document.write( "r =   cm \r<BR>\n" );
document.write( "\n" );
document.write( "(d) What is the maximum area? (Give a symbolic answer; decimal approximations will be marked incorrect) <BR>\n" );
document.write( "area =   cm2\r<BR>\n" );
document.write( "\n" );
document.write( "For A, I got (85/r)-2\r<BR>\n" );
document.write( "\n" );
document.write( "Then for B, I got (1/2)r^2(85/r)-2\r<BR>\n" );
document.write( "\n" );
document.write( "But then I'm stuck.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585806 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=585806\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There is no figure shown. <BR>\n" );
document.write( "Can you repost with the figure? </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );