document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=404031>Question 404031</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help???\r<BR>\n" );
document.write( "\n" );
document.write( "31. Isosceles triangle. An isosceles triangle has two equal<BR>\n" );
document.write( "sides. If the shortest side of an isosceles triangle is 2 ft less<BR>\n" );
document.write( "than one of the equal sides and the perimeter is 13 ft, then<BR>\n" );
document.write( "what are the lengths of the sides?\r<BR>\n" );
document.write( "\n" );
document.write( "21. Roof truss design. An engineer is designing a roof truss as<BR>\n" );
document.write( "shown in the accompanying figure. Find the degree measure<BR>\n" );
document.write( "of the angle marked w.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #285582 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=285582\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An isosceles triangle has two equal An isosceles triangle has two equal<BR>\n" );
document.write( "sides. <BR>\n" );
document.write( "If the shortest side of an isosceles triangle is 2 ft less<BR>\n" );
document.write( "than one of the equal sides and the perimeter is 13 ft, then<BR>\n" );
document.write( "what are the lengths of the sides?<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Let the length of each equal side be \"x\":<BR>\n" );
document.write( "Then the 3rd side has length = \"x-2\".<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "Perimeter = side + side + side<BR>\n" );
document.write( "13 = x + x + x-2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "3x = 15<BR>\n" );
document.write( "x = 5<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Each equal side has length 5 ft<BR>\n" );
document.write( "The 3rd side has length x-2 = 3 ft<BR>\n" );
document.write( "======================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "===========<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );