document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=328067>Question 328067</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the measure of the indicated exterior angle.<BR>\n" );
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document.write( "angle x= (6n - 20)°, angle y = (4n + 47)°, angle z = (170 - n)° \r<BR>\n" );
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document.write( "The answers to chose from are:<BR>\n" );
document.write( "A) 55° <BR>\n" );
document.write( "B) 157° <BR>\n" );
document.write( "C) 167° <BR>\n" );
document.write( "D) 145° \r<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 #235020 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=235020\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The exterior angle theorem is a theorem in elementary geometry which states that the exterior angle of a triangle is equal to the sum of the two remote interior angles.\r<BR>\n" );
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document.write( "Since angle z is the exterior angle, we have the folowing equation:  z = x + y.\r<BR>\n" );
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document.write( "  \r<BR>\n" );
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document.write( "170 - n = 6n - 20 + 4n + 47 \r<BR>\n" );
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document.write( "170 - n = 10n + 27 \r<BR>\n" );
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document.write( "170 - 27 = 10n + n \r<BR>\n" );
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document.write( "143 = 11n \r<BR>\n" );
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document.write( "143/11 = n \r<BR>\n" );
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document.write( "13 = n \r<BR>\n" );
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document.write( "z = 170 - n \r<BR>\n" );
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document.write( "z = 170 - 13 \r<BR>\n" );
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document.write( "z = 157 \r<BR>\n" );
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document.write( "The answer is choice B. \r<BR>\n" );
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