document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1186673>Question 1186673</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help with finding angle DEF? \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #817616 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=817616\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The triangles EDY and EFY are congruent by hypotenuse-leg, so angles DEY and FEY are congruent.<br><BR>\n" );
document.write( "So solve <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2y%2B11=4y-7 ALIGN=MIDDLE  ALT=\"2y%2B11=4y-7\"   DISABLED_style= \"max-width:90%; height:auto;\" > for y to find the measure of angles DEY and FEY; then the measure of angle DEF is the sum of those two.<br><hr><BR>\n" );
document.write( "The student responded, saying that the diagram does not show that angle EFY is a right angle.<br><BR>\n" );
document.write( "He is absolutely right; I overlooked that.<br><BR>\n" );
document.write( "And that makes it impossible to answer the question.  Move point F along ray EF to different positions and the measure of angle DEF will change....<br>\r<BR>\n" );
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