Question 895011
<pre>
Don't use < for angle, use &#8736; instead.  If you use < it causes things to
delete.  Also you have to describe your figures in words because we cannot
tell where the various letters are located unless you tell us.

The way to make the angle symbol &#8736; is  to type this {{{drawing(50,15,-2,2,-1,1,locate(-1.7,2.7,"&"),
locate(-1.1,1.3,"#8736;")
  )}}} before each angle. 

Edwin</pre>