document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=920979>Question 920979</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The measure of an exterior angle at vertex B of isosceles triangle ABC is 70°. The measure of a base angle of the triangle is (1) 110°	(2) 70°	(3) 55°	(4) 35° </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #558666 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=558666\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The measure of an exterior angle at vertex B of isosceles triangle ABC is 70°.<BR>\n" );
document.write( "So the measure of the vertex angle is 90-70 = 20 degrees<BR>\n" );
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document.write( "The base angles have equal measure, so::<BR>\n" );
document.write( "2x + 20 = 180<BR>\n" );
document.write( "2x = 160<BR>\n" );
document.write( "x = 80 degrees (measure of each base angle.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " The measure of a base angle of the triangle is <BR>\n" );
document.write( "(1) 110° (2) 70° (3) 55° (4) 35° </SPAN>\n" );
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