document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=830236>Question 830236</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In parallelogram ABCD the measure of angle A is three times that of angle B. What are the measures of C and D? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500448 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=500448\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In parallelogram ABCD the measure of angle A is three times that of angle B. What are the measures of C and D?\r<BR>\n" );
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document.write( "\"the measure of angle A is three times that of angle B\" ----> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+3B ALIGN=MIDDLE  ALT=\"A+=+3B\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "For ALL parallelograms, the adjacent angles are supplementary. So that means the two angles add to 180 degrees\r<BR>\n" );
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document.write( "A+B = 180\r<BR>\n" );
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document.write( "3B+B = 180 ... plug in A = 3B\r<BR>\n" );
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document.write( "4B = 180\r<BR>\n" );
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document.write( "B = 180/4\r<BR>\n" );
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document.write( "B = 45\r<BR>\n" );
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document.write( "A = 3B\r<BR>\n" );
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document.write( "A = 3*45\r<BR>\n" );
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document.write( "A = 135\r<BR>\n" );
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document.write( "For ALL parallelograms, the opposite angles are congruent (ie equal), which means\r<BR>\n" );
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document.write( "A = C\r<BR>\n" );
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document.write( "135 = C\r<BR>\n" );
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document.write( "C = 135\r<BR>\n" );
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document.write( "B = D\r<BR>\n" );
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document.write( "45 = D\r<BR>\n" );
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document.write( "D = 45\r<BR>\n" );
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document.write( "Summary:\r<BR>\n" );
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document.write( "A = 135 degrees<BR>\n" );
document.write( "B = 45 degrees<font color=\"red\"><BR>\n" );
document.write( "C = 135 degrees<BR>\n" );
document.write( "D = 45 degrees<BR>\n" );
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