document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=286763>Question 286763</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One angle of an isosceles triangle is twice another angle of the triangle. Which of the following could NOT be an angle of this triangle?\r<BR>\n" );
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document.write( "A. 18&#9702; B. 36&#9702; C. 45&#9702; D. 72&#9702; E. 90&#9702; </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #207941 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=207941\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It cannot be 18.\r<BR>\n" );
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document.write( "To see this, note that every isosceles triangles will have two angles equal. You are told the third angle is either 1/2 or twice the other two angles.<BR>\n" );
document.write( "You also know that every triangle has 180 interior degrees in it.\r<BR>\n" );
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document.write( "So 45+45+90 = 180  <BR>\n" );
document.write( "72+72+36 = 180<BR>\n" );
document.write( "Thus only 18 won't work </SPAN>\n" );
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