document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=541455>Question 541455</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In triangle ABC, the measure of angle B is 21 degrees less than the measure of angle A multiplied by 4. The measure of angle C is 1 degree more then the measure of angle A multiplied by 5. Determine the measure of each interior angle and each exterior angle of triangle ABC. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #354227 by </B><A HREF=/tutors/aboutme.mpl?userid=fcabanski><B>fcabanski(1391)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fcabanski><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=354227\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> B=4A-21<BR>\n" );
document.write( "C=5A+1<BR>\n" );
document.write( "A=A<P><BR>\n" );
document.write( "The above is given.  The interior angles of a triangle add to 180.<P><BR>\n" );
document.write( "4A-21 + 5A+1 + A =180<P><BR>\n" );
document.write( "10A-20=180<P><BR>\n" );
document.write( "10A = 200<P><BR>\n" );
document.write( "A = 20<P><BR>\n" );
document.write( "B=4A-21=4(20)-21=59<P><BR>\n" );
document.write( "C=5A+1=5(20)+1=101<P><BR>\n" );
document.write( "When you know the measure of all interior angles, you can find the two exterior angels adjacent to each interior angle by subtracting the interior angle from 180.<P><BR>\n" );
document.write( "The two exterior angles adjacent to A = 180-20=160<P><BR>\n" );
document.write( "The two exterior angles adjacent to B = 180=59=121<P><BR>\n" );
document.write( "The two exterior angles adjacent to C = 180-101=79<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );