document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=400143>Question 400143</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Line  segment  AC is a diagonal  of regular pentagon  ABCDE. What is the measure of angle ACD?<BR>\n" );
document.write( "A. 36 degrees <BR>\n" );
document.write( "B. 54 degrees <BR>\n" );
document.write( "C. 72 degrees <BR>\n" );
document.write( "D. 108 degrees \r<BR>\n" );
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document.write( "I tried to use [(180)(n-2)/n] to find the measure  of an interior  angle  and i got 108 degrees. since i knew that the diagonal  went through angle ACD so i tried to figure  out how to determine it but i am at a loss.\r<BR>\n" );
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document.write( "thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #283339 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=283339\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">   <PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><font size = 3 color = \"indigo\"><b><BR>\n" );
document.write( "Hi, <BR>\n" );
document.write( "Line segment AC is a diagonal of 'regular pentagon' ABCDE. What is the measure of angle ACD<BR>\n" );
document.write( "Yes! [(180)(n-2)/n], the measure of each interior angle is 108 degrees<BR>\n" );
document.write( "Note Editing: diagramming of the particulars/with explanation<BR>\n" );
document.write( " &#8736;B = 108° &#916;ABC Isoseles (&#8736;BAC =&#8736;ACB = 36°) &#8736; ACD = 108°-36° = 72° <BR>\n" );
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document.write( " </SPAN>\n" );
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