document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=905457>Question 905457</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In an isosceles triangle, the base angles are equal and the vertex angle is 80°. Find the measure of the base angles. <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #549219 by </B><A HREF=/tutors/aboutme.mpl?userid=Math_Boss><B>Math_Boss(45)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Math_Boss><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=Math_Boss><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=549219\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=80 (vertex angle)<BR>\n" );
document.write( "x+y+z=180 (Sum of angles of any triangle is always 180)<BR>\n" );
document.write( "x+x+z=180 (isosceles triangle, base angles are equal)<BR>\n" );
document.write( "Substitute z=80<BR>\n" );
document.write( "x+x+80=180<BR>\n" );
document.write( "2x=100<BR>\n" );
document.write( "x=50<BR>\n" );
document.write( "Ans:Base angles are 50 each<BR>\n" );
document.write( "Check:50+50+80=180 </SPAN>\n" );
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