document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173633>Question 173633</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ABCD is a parallelogram\r<BR>\n" );
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document.write( "angle A= 2x+19, angle B= 3x+21. Find all angles </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #128481 by </B><A HREF=/tutors/aboutme.mpl?userid=303795><B>303795(602)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=303795><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=128481\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A parallelogram has two pairs of congruent (same sized angles). The four angle sizes add up to 360 degrees.<BR>\n" );
document.write( "Angle A and C will be the same size as will angles B and D.<BR>\n" );
document.write( "angle A + angle B + angle C + angle D = 360<BR>\n" );
document.write( " 2x+19 + 3x+21 + 2x+19 + 3x+21 = 360<BR>\n" );
document.write( "10x + 80 = 360<BR>\n" );
document.write( "10x = 280<BR>\n" );
document.write( "x=28<BR>\n" );
document.write( "So angle A and C are 2*28+19 = 75 degrees<BR>\n" );
document.write( "and angles B and D are 3*28+21 = 105 degrees. </SPAN>\n" );
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