document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=466766>Question 466766</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What type of shape is this in the link?\r<BR>\n" );
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document.write( "http://1.bp.blogspot.com/-xgH3jxjnQyw/ThAlrtxcZnI/AAAAAAAAAAg/uzLAnVQ8RrM/s320/IMG_20110703_011556.jpg\r<BR>\n" );
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document.write( "Choices:\r<BR>\n" );
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document.write( "A. regular concave polygon\r<BR>\n" );
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document.write( "B. convex polygon\r<BR>\n" );
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document.write( "C. concave polygon\r<BR>\n" );
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document.write( "D. not a polygon\r<BR>\n" );
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document.write( "E. regular convex polygon\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 #320036 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=320036\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> here's a good reference that will help you understand convex and concave polygons.<BR>\n" );
document.write( "<a  rel=nofollow HREF= \"http://www.mathopenref.com/polygonconvex.html\" target = \"_blank\">http://www.mathopenref.com/polygonconvex.html</a><BR>\n" );
document.write( "the convex polygon will not have an internal angle greater than 180 degrees.<BR>\n" );
document.write( "the concave polygon will.<BR>\n" );
document.write( "the figure shown in your jpg file looks very much like a concave polygon.<BR>\n" );
document.write( "there is no such a thing as a regular concave polygon (see the reference).<BR>\n" );
document.write( "your figure looks very much like a concave polygon.<BR>\n" );
document.write( "from wikipedia:<BR>\n" );
document.write( "A simple polygon that is not convex is called concave[2] or reentrant.[3] A concave polygon will always have an interior angle with a measure that is greater than 180 degrees.<BR>\n" );
document.write( "It is always possible to cut a concave polygon into a set of convex polygons. A polynomial-time algorithm for finding a decomposition into as few convex polygons as possible is described by Chazelle & Dobkin (1985).[4]<BR>\n" );
document.write( "end of from wikipedia: </SPAN>\n" );
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