Question 205407
<pre><font size = 4 color = "indigo"><b>
{{{drawing(400,400,-1.5, 1.5,-.5,3.5,
triangle(0,3,0,0,.8038,0), triangle(0,3,-.5359,1,.5359,1),
triangle(-.8038,0,.8038,0,0,3), locate(-.8038,0,A),
locate(0,0,F),locate(.8038,0,C),locate(.6,1,D),
locate(0.03,1,E),locate(-.5359,1,B),locate(0,3.17,G)
  )}}}


1. <font face = "symbol">Ð</font>BGE <font face = "symbol">@</font> <font face = "symbol">Ð</font>DGE        1. Given

2.   GF <font face = "symbol">@</font> GF           2. Any line segment is <font face = "symbol">@</font> to itself. 

3. <font face = "symbol">Ð</font>GFA <font face = "symbol">@</font> <font face = "symbol">Ð</font>GFC        3. GF <font face = "symbol">^</font> AC

4. <font face = "symbol">D</font>GFA <font face = "symbol">@</font> <font face = "symbol">D</font>GFC        4. ASA

5.   GA <font face = "symbol">@</font> GC          5. cpct

6. <font face = "symbol">D</font>AGC is isosceles. 6. Two sides <font face = "symbol">@</font>

Edwin</pre>