document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1021365>Question 1021365</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The angles of the quadrilateral are in A.P.The greatest angle of the quadrilateral is double the least. Find the angles of the quadrilateral. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #637080 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=637080\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The sum of the first n terms of an AP is given by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%5Bn%5D=%28n%2F2%29%28a%5B1%5D%2Ba%5Bn%5D%29 ALIGN=MIDDLE  ALT=\"S%5Bn%5D=%28n%2F2%29%28a%5B1%5D%2Ba%5Bn%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%5B4%5D+=+%284%2F2%29%28x%2B2x%29+=+2%283x%29+=+6x ALIGN=MIDDLE  ALT=\"S%5B4%5D+=+%284%2F2%29%28x%2B2x%29+=+2%283x%29+=+6x\"   DISABLED_style= \"max-width:90%; height:auto;\" > as per the given info.\r<BR>\n" );
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document.write( "But the sum of the interior angles of a quadrilateral is always 360 degrees.\r<BR>\n" );
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document.write( "Hence, \r<BR>\n" );
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document.write( "6x = 360\r<BR>\n" );
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document.write( "==> x = 60, and the angles of the quadrilateral are 60, 80, 100, and 120. </SPAN>\n" );
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